The Milwaukee Brewers have placed Corbin Burnes on the injured list with an unspecified issue.
Burnes, one of baseball's hottest pitchers, was scheduled to face the Los Angeles Dodgers this weekend.
Craig Counsell said he couldn't comment on the situation when asked directly whether Burnes had tested positive for COVID-19.
"Corbin is on the injured list," Counsell said. "I can't discuss it."
Burnes, 26, is 2-2 with a 1.53 ERA this season. He has yet to issue a walk while striking out 49 batters.