CHICAGO (AP) — The Chicago Bulls will be without two assistant coaches for at least their playoff opener against the Milwaukee Bucks after Chris Fleming and Damian Cotter tested positive for COVID-19, coach Billy Donovan said.

Donovan said the team found out Friday morning that Fleming — Chicago’s lead assistant — and Cotter tested positive. He said they were experiencing mild symptoms and will not travel to Milwaukee for Game 1 of their first-round series on Sunday.

Donovan was not sure how long they will be out. Game 2 is Wednesday in Milwaukee, with the best-of-seven series shifting to Chicago for Game 3 on April 22.

The Bulls were hit hard by a COVID-19 outbreak in December and had several games postponed. Donovan tested positive late that month with mild symptoms, and Fleming acted as head coach for the five games he missed.