Wainwright threw four innings of live batting practice in Sunday's summer camp workout, Anne Rogers of MLB.com reports.

EDGE Analysis

The heavy workload marked Wainwright's third time pitching four innings this calendar year, factoring in work he did on his own during the shutdown. The 60-game season will naturally result in much less wear and tear on the veteran right-hander's arm than he would have experienced in a full campaign, so there remains a possibility Wainwright returns for 2021 after initially looking likely to retire following 2020.