UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                  SCHEDULE 13D

                    UNDER THE SECURITIES EXCHANGE ACT OF 1934



                                    YP Corp.
--------------------------------------------------------------------------------

                                (Name of Issuer)

                    Common Stock, par value $0.001 per share
--------------------------------------------------------------------------------
                         (Title of Class of Securities)

                                    987824109
                   ------------------------------------------

                                 (CUSIP Number)

                        Grand Slam Asset Management, LLC
                                One Bridge Plaza
                              Fort Lee, New Jersey
                                     07024
                                 (201) 346-4335
                               Attn: Erik Volfing

--------------------------------------------------------------------------------
            (Name, Address and Telephone Number of Person Authorized
                     to Receive Notices and Communications)

                               September 12, 2005
              ----------------------------------------------------
                              (Date of Event which
                       Requires Filing of this Statement)

If the filing person has previously  filed a statement on Schedule 13G to report
the  acquisition  which is the subject of this  Schedule 13D, and is filing this
schedule  because of Rule  13d-1(e),  13d-1(f) or 13d-1(g),  check the following
box. |_|

Note:  Schedules  filed in paper format shall include a signed original and five
copies of the schedule, including all exhibits. See Rule 13d-7 for other parties
to whom copies are to be sent.

*The  remainder of this cover page shall be filled out for a reporting  person's
initial filing on this form with respect to the subject class of securities, and
for  any  subsequent   amendment   containing   information  which  would  alter
disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the  Securities  Exchange  Act of
1934 ("Act") or otherwise  subject to the liabilities of that section of the Act
but  shall be  subject  to all other  provisions  of the Act  (however,  see the
Notes).


                                                                SEC 1746 (12-91)



CUSIP NO. 987824109                                                 SCHEDULE 13D
================================================================================
1    NAMES OF REPORTING PERSONS
     I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

     Grand Slam Asset Management, LLC            IRS # 22-3779105

--------------------------------------------------------------------------------
2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
            (a) |X|
            (b)
--------------------------------------------------------------------------------
3    SEC USE ONLY
--------------------------------------------------------------------------------
4    SOURCE OF FUNDS*

     AF
--------------------------------------------------------------------------------
5    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS RE-
     QUIRED PURSUANT TO ITEM 2(d) OR 2(e)    |_|
--------------------------------------------------------------------------------
6    CITIZENSHIP OR PLACE OF ORGANIZATION

     Delaware, USA
--------------------------------------------------------------------------------
                7    SOLE VOTING POWER

                      -0-
                ----------------------------------------------------------------
   NUMBER OF    8    SHARED VOTING POWER
    SHARES
 BENEFICIALLY        3,235,780
   OWNED BY     ----------------------------------------------------------------
     EACH
   REPORTING    9    SOLE DISPOSITIVE POWER
    PERSON
     WITH             -0-
                ----------------------------------------------------------------
                10   SHARED DISPOSITIVE POWER

                     3,235,780
--------------------------------------------------------------------------------

11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

     3,235,780
--------------------------------------------------------------------------------
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
     CERTAIN SHARES*                                                         |_|

--------------------------------------------------------------------------------
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

     6.57%
--------------------------------------------------------------------------------
14   TYPE OF REPORTING PERSON

     IA
--------------------------------------------------------------------------------

                                     Page 2



CUSIP NO. 987824109                                                 SCHEDULE 13D
================================================================================
1    NAMES OF REPORTING PERSONS
     I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

     Grand Slam Capital Master Fund, Ltd.                  IRS # 20-0239056
--------------------------------------------------------------------------------
2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
            (a) |X|
            (b)
--------------------------------------------------------------------------------
3    SEC USE ONLY
--------------------------------------------------------------------------------
4    SOURCE OF FUNDS*

     WC
--------------------------------------------------------------------------------
5    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS RE-
     QUIRED PURSUANT TO ITEM 2(d) OR 2(e)    |_|
--------------------------------------------------------------------------------
6    CITIZENSHIP OR PLACE OF ORGANIZATION

     Cayman Islands
--------------------------------------------------------------------------------
                7    SOLE VOTING POWER

                     -0-
                ----------------------------------------------------------------
   NUMBER OF    8    SHARED VOTING POWER
    SHARES
 BENEFICIALLY        3,235,780
   OWNED BY     ----------------------------------------------------------------
     EACH       9    SOLE DISPOSITIVE POWER
   REPORTING
    PERSON           -0-
     WITH       ----------------------------------------------------------------
                10   SHARED DISPOSITIVE POWER

                     3,235,780
--------------------------------------------------------------------------------
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

     3,235,780
--------------------------------------------------------------------------------
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
     CERTAIN SHARES*                                                         |X|

--------------------------------------------------------------------------------
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

     6.57%
--------------------------------------------------------------------------------
14   TYPE OF REPORTING PERSON

      OO
================================================================================

                                     Page 3



      ITEM 1.    SECURITY AND ISSUER

The title of the class of equity  securities to which this statement on Schedule
13D (the  "Statement")  relates is the common  stock (the "Common  Stock"),  par
value $0.001 per share, of YP Corp., a Nevada corporation (the "Issuer"), and is
being filed with the Securities and Exchange  Commission (the "SEC") pursuant to
Rule 13d-1 under the Securities  Exchange Act of 1934, as amended (the "Exchange
Act").  The  principal  offices of the Issuer are  located at 4840 East  Jasmine
Street, Suite 105, Mesa, Arizona.

      ITEM 2.    IDENTITY AND BACKGROUND

      (a)   This  Statement  is being filed by Grand Slam  Capital  Master Fund,
Ltd., a Cayman Islands exempted company ("Master Fund").  Master Fund was formed
for the purpose of acquiring and managing  assets.  This Statement is also being
filed by Grand Slam Asset Management,  LLC, a Delaware limited liability company
(the "Asset Management", together with Master Fund, the "Reporting Parties), for
and on behalf of itself,  which serves as the investment advisor of Master Fund.
As such,  Asset  Management  may be deemed to control,  directly or  indirectly,
Master Fund and to beneficially own the shares of Common Stock being reported on
this Statement by Master Fund.

      (b)   The address of the  principal  offices of Asset  Management  and the
mailing address of Master Fund is One Bridge Plaza,  Fort Lee, New Jersey 07024.
The  address  of the  principal  offices  of Master  Fund is c/o Bank of Bermuda
(Cayman) Limited,  36C Bermuda House,  British American Center, Dr. Roy's Drive,
PO Box 513GT, George Town, Grand Cayman, Cayman Islands, B.W.I.

      (c)   Attached  as  Exhibit A is the name of the  executive  officers  and
managers  of  Asset  Management  and  their  business  addresses  and  principal
occupations.  Attached  as  Exhibit B are the names of the  directors  of Master
Fund,  their business  addresses and principal  occupations.  Master Fund has no
executive officers.

      (d )  During the last five years, neither of the Reporting Parties nor any
person listed on Exhibits A or B has been convicted in a criminal proceeding.

      (e)   During the last five years, neither of the Reporting Parties nor any
person  listed on  Exhibits A or B has been a party to a civil  proceeding  of a
judicial or  administrative  body of competent  jurisdiction  and as a result of
such proceeding was or is subject to a judgment, decree or final order enjoining
future violations of, or prohibiting or mandating

                                     Page 4



activities subject to, federal or state securities laws or finding any violation
with respect to such laws.

      (f)   The  nationality  of the  executive  officers  and managers of Asset
Management  are set forth on  Exhibit A. The  nationality  of the  directors  of
Master Fund are set forth on Exhibit B.

      ITEM 3.    SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION

The funds for the  purchase of the shares of Common Stock set forth on Exhibit C
hereto (the  "Shares")  have come from the working  capital of Master Fund.  The
aggregate  amount of funds  used in making  the  purchases  of the Shares in the
sixty  days  prior  to the date  upon  which  the  Reporting  Parties  reporting
requirement arose is $1,951,063.

      ITEM 4.    PURPOSE OF TRANSACTION

      The  Reporting  Parties  have  acquired  the Shares,  as described in this
Statement,  in order to obtain a substantial equity position in the Issuer based
on the Reporting  Parties' belief that the Common Stock at current market prices
is undervalued  and represent an attractive  investment  opportunity.  Depending
upon overall market conditions,  other investment opportunities available to the
Reporting Parties, and the availability of shares of Common Stock at prices that
would make the purchase of additional  shares  desirable,  the Reporting Parties
may  endeavor to increase  their  position  in the Issuer  through,  among other
things,  the purchase of shares of Common Stock on the open market or in private
transactions  or  otherwise,  on such terms and at such  times as the  Reporting
Parties may deem  advisable.  Asset  Management  anticipates  that, from time to
time, it may  communicate  with the Issuer  regarding its business and strategic
opportunities   and  identify  to  the  Issuer   strategic   opportunities   and
alternatives to be considered by the Issuer.  Asset Management may also propose,
propose to arrange, or identify to the Issuer sources of capital.

      Other than as set forth herein,  neither of the Reporting Parties, nor any
of the  individuals set forth on Exhibits A or B has any plans or proposals that
relate to or would  result in any of the results  specified  in  paragraphs  (a)
through (j) of Item 4 of this Statement.

      ITEM 5.    INTEREST IN SECURITIES OF THE ISSUER

      (a)   The  Reporting  Parties  beneficially  own an aggregate of 3,235,780
Shares representing  approximately 6.57% of the issued and outstanding shares of
Common Stock of the Issuer. The percentage ownership of the Reporting Parties in
the Issuer's capital stock is based on 49,219,736 issued and outstanding  shares
of the Common  Stock as reported by the Issuer in its  Quarterly  Report on Form
10-Q for the quarter  ended June 30,  2005,  filed with the SEC. The managers of
Asset Management do not beneficially own any shares of Common Stock. Since Asset
Management may be deemed to control, directly or indirectly,  Master Fund, Asset


                                     Page 5



Management  may be deemed to have the power to direct the vote or disposition of
the  Shares,  and  accordingly,  may be  deemed,  for  purposes  of  determining
beneficial  ownership  pursuant  to  Rule  13d-3  under  the  Exchange  Act,  to
beneficially own the Shares held by Master Fund.

      (b)   Master  Fund  directly  owns the Shares and has the power to vote or
direct the vote and to dispose or direct the  disposition  of the Shares.  Asset
Management may be deemed to control, directly or indirectly,  Master Fund, Asset
Management  may be deemed to have  shared  power to vote or direct  the vote and
dispose or direct the disposition of the Shares and may be deemed,  for purposes
of determining  beneficial  ownership  pursuant to Rule 13d-3 under the Exchange
Act, to beneficially own the shares of Common Stock held by Master Fund.

      (c)   The dates and amount of each  acquisition of the Shares is listed on
Exhibit C hereto.  Except as set forth in  Exhibit C hereto,  there have been no
transactions  in  shares of Common  Stock  since the date of the  filing of this
Statement by the Reporting  Parties or any person or entity listed on Exhibits A
or B hereto.

      (d)   No  person  is known to have the  right to  receive  or the power to
direct the  receipt of  dividends  from,  or the  proceeds  from the sale of the
Shares owned by Master Fund except Asset Management.

      (e)   Not applicable.

      ITEM 6.    CONTRACTS,  ARRANGEMENTS,  UNDERSTANDINGS OR RELATIONSHIPS WITH
                 RESPECT TO SECURITIES OF THE ISSUER

Asset Management provides investment management services to Master Fund pursuant
to that certain  Amended and Restated  Investment  Management  Agreement,  dated
September  1, 2003,  by and among Asset  Management,  Master Fund and Grand Slam
Capital Offshore Fund, Ltd.

                                     Page 6



      ITEM 7.  MATERIAL TO BE FILED AS EXHIBITS

      The following materials are filed as Exhibits to the Statement:

      EXHIBIT A:        Information  with respect to the executive  officers and
                        managers of Grand Slam Asset Management, LLC.

      EXHIBIT B:        Information  with respect to the directors of Grand Slam
                        Capital Master Fund, Ltd.

      EXHIBIT C:        As described in Item 5.

      EXHIBIT D:        Joint Filing Agreement.


                                     Page 7



                                    SIGNATURE

      After  reasonable  inquiry and to the best of my knowledge  and belief,  I
certify that the information  set forth in this Statement is true,  complete and
correct.



Dated:  September 16, 2005         Grand Slam Capital Master Fund, Ltd.




                                    By:          /s/ Mitchell Sacks
                                         ------------------------------------
                                    Name:  Mitchell Sacks
                                    Title: Director


Dated:  September 16, 2005          Grand Slam Asset Management, LLC




                                    By:          /s/ Erik Volfing
                                         ------------------------------------
                                    Name:  Erik Volfing
                                    Title: Member


                                     Page 8