Red Sox non-roster invitee Austin Adams still has the Roger Clemens pitch trainer ball that he used to learn a slider when he was a kid. It’s one of those baseballs that shows the grip of Clemens' ...
How to do it: Grab a dumbbell and stand tall with the weight in left hand, core engaged, shoulders back, chest proud. Contract abs and lean to the left as you slide the weight down to left knee. Use ...