Jermaine O'Neal rejoined the Celtics on Monday following two months on the shelf after arthroscopic surgery on his left knee.

O'Neal could play as soon as Thursday at San Antonio, but Doc Rivers wouldn't commit to that plan.

“I’m able to go,’’ O’Neal said. “No limitations.’’

Rivers said, “I think Jermaine has his own personal time clock. We’ll see. I hope, that would be great.’’

Boston will have Tuesday off and practice on Wednesday.

“There’s a chance [he could play Thursday], but I doubt it,’’ said Rivers. “It’s just so quick. Honestly, the only way is if we had some other injury or something. Even then, I doubt if I’d do it. I’d go with the six guys we’d have in uniform.’