During the winter months the MSL will be holding their combine and practice for all MSL menbers at the Rosemont Sports Dome. 27 Jennie Fitch We have 11 batting cages, a full 90ft infield, and the ability to do fly balls for outfielders. 04/12/2018 People ask who or what is the MSL? We are starting our 22nd year as the top amateur baseball league in