they say that if a guy's pitching that that his arm is still developing until he's twenty five and if pitches a whole lot of innings before that it may take its toll later in life
Rotator cuff injuries are common in later life among pitchers.
mnli hypothesis: Rotator cuff injuries are common in later life among pitchers. premise: they say that if a guy's pitching that that his arm is still developing until he's twenty five and if pitches a whole lot of innings before that it may take its toll later in life