Mason McGwire, 22, is a pitcher for the Chicago Cubs' Single-A affiliate and has had a strong start to the season on the ...

Mark McGwire was a Chicago Cubs nemesis. His son Mason is trying to become an MLB player for those same Cubs. His father, of ...

Mark McGwire tormented opposing pitchers for years during his playing days. Now, his son is on the mound, making life ...

His father hit 583 homers in the big leagues, but on Sunday, Mason McGwire wanted nothing to do with the long ball. In the ...