Shoulder injuries represented 27.8% of all disabled days (days on the DL) in professional baseball players. Pitchers experienced a 34% higher incidence injury rate compared with fielders in Major League Baseball. When pitchers were placed on DLs for injuries to the upper extremity they remained so for a longer length of time, 74.25 days vs 54.15 days.

Source: Clinics in Sports Medicine, Published Online: January 28, 2015