Chris Bosh participated in an on-court workout on Sunday, a significant step in his recovery from an abdominal strain.
Bosh remains listed as out indefinitely.
Bosh's workout included catching and turning with the ball, along with lateral movement across the court.
"I'm not even preparing for that right now," Erik Spoelstra said earlier Sunday when asked about Bosh's status for the series. "I'm preparing for who we have in the gym. So our focus is (Monday). And that's all I can concentrate on. We have enough to win (Monday). That's all that any of our guys should be focused on."