With this lot of 13 magazines you get: 

February 1989 - Mike Greenwell on cover

March 1989 - Mark Grace on cover

April 1989 Greg Jefferies on cover

May 1989 Roberto Clemente on cover

June 1989 Bo Jackson in Royals uniform on cover

January 1990 Reuben Sierra on cover

February 1990 Bo Jackson on cover

March 1990 Robin Yount on cover

April 1990 Mark Grace on cover

May 1990 Don Mattingly on cover

June 1990 Bo Jackson on cover (2 magazines)

November 1990 Barry Bonds on cover