The Yankees closer posted a series of intense workout videos to his Instagram story Thursday, days after manager Aaron Boone announced that he would be away from the team for the “foreseeable future” after testing positive for the coronavirus. Chapman was said to be experiencing mild symptoms.

Chapman, 32, is the third known Yankees player to test positive for COVID-19 since training camp resumed earlier this month. The team had previously announced that infielder DJ LeMahieu and pitcher Luis Cessa had tested positive. LeMahieu rejoined the team on Thursday.

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Chapman had made news during quarantine thanks to a bulked-up frame.

The Yankees are slated to begin their season on July 23 against the reigning World Series champion Washington Nationals.