Official Major League (Selig) ball features thrity-one (31) 2001 American League Champion New York Yankees signatures including Torre; Jeter; Williams; Rivera; Pettitte; Clemens; Mussina; Martine; Posada; O'Neill; Justice; Soriano; Keisler; Bragg; Spencer; Almanzar; Mendoza; Sojo; Greene; Zimmer; Bellinger; Wilson; Stanton; Randolph; Brosius; Stottlemyre; Denbo; Cloninger; Boehringer; Knoblauch and Mazilli. Signatures average around 9/10; ball presents NRMT.