Florida's leading scorer is expected to play against Auburn on Saturday.
Casey Prather has missed the seventh-ranked Gators last two games with a bone bruise in his right knee.
"I really don't have a real good feel yet of actually how much we could get out of him, because he hasn't done any contact," Donovan told reporters before Friday's practice. "How much he'll play is really, really hard to say."
Prather was cleared for contact before Friday's practice.
He leads Florida with 17 points a game this season on 62.4 percent shooting in 14 games. Prather also averages 5.5 rebounds and 2.1 assists.
Prather gives the Gators (14-2, 3-0 SEC) seven scholarship players to work with against Auburn (8-6, 0-3).
The game is scheduled for Saturday afternoon at 3 at Auburn Arena.