O’Sullivan is back to 100 percent after coming off a shoulder injury, which limited his time on the mound this season for the University of Rhode Island. The previous year as a sophomore, O’Sullivan appeared in 12 games while starting six, totaling 53 innings on the mound.  In his time on the field he struck out 23 batters, while giving up 24 earned runs.  He was 5-0 and finished the season with an ERA of 4.08. A multi-sport athlete, who also excelled in basketball, O’Sullivan was three-time All-Conference selected at Holy Name Central Catholic.  O’Sullivan was selected to the All-Central Mass Team twice throughout his time in high school.