Fact that one bubble gum manufacturer, through individual contracts with every major and minor league baseball player, managed to obtain licensing agreements with each player giving it the exclusive right to use the player’s picture on baseball cards did not make aggregation of those contracts unlawful combination in restraint of trade. Fleer Corp. v. Topps Chewing Gum, Inc., 658 F.2d 139 (3d Cir. 1981)