Chicago White Sox right-hander Michael Kopech opted out of the 2020 season last week, causing some concern within the organization.

Kopech didn't give a reason for his decision, though it needed no explanation. He is coming off Tommy John surgery as well.

The 24-year-old was away from the White Sox early in summer camp for "personal reasons." He has discussed his battle with anxiety and depression in the past.

"I don't know what is going on with Michael, but I know he deals with some anxiety and depression, and my thought is, I sure hope he's OK," pitching coach Don Cooper said. "And I hope he gets to where he needs to be, where he's feeling good and wants to come back, because we will welcome him back with open arms."

"Last time I saw him in spring training, he was in a great place," Cooper added. "But let me put it this way: I sure hope the kid is OK.

"I'm concerned that he's not OK."