Russell Westbrook has yet to be cleared for full-contact practice, which puts his status for the Oklahoma City Thunder's regular season opener against the Golden State Warriors in doubt.
Westbrook had arthroscopic surgery on his right knee on Sept. 12.
"Every day for him, he feels better and better," said Donovan. "I don't want to say [if he'll be ready]. I know you guys want to know that, but that's too far out and there will be a lot of things that will go into that decision.
"There's certain things he'll have to go through to get himself fully cleared to play, but he's certainly moving in the right direction and he's worked really hard at his rehab to get himself back."