A key reliever during USC's run to the Super Regionals may not be available for the 2019 campaign.
Rising senior Graham Lawson had Tommy John surgery last week. Lawson was 1-1 with a 5.60 ERA and three saves this past season.
He was taken in the 12th round by the Washington Nationals in last month's MLB Draft but did opted to return to school for his senior season.
Lawson and Ridge Chapman were the only returning players of the 10 draftees who opted to come back to school.
