The Men’s Senior Baseball League (MSBL), also considered as the alternative men's big league baseball, is an American premier amateur baseball league where past and present MLB players are also sometimes known to play. Playoff tournament games are played in MLB spring training ballparks. The MSBL is staffed at the national level by a professional team of seasoned baseball veterans and throughout the nation by top notch local league leadership. Founded in 1988, it is the largest amateur baseball league in America. The league has 325 local affiliates, 3,200 teams and 45,000 members who play organized amateur baseball in local leagues, 30 regional tournaments and six national tournaments. The MSBL is poised to reach 50,000 members including former MLB players featured below.