There's no telling when Rajon Rondo will return to the basketball court for the Boston Celtics this season.

And apparently, there's no telling Rondo himself when he can play in pickup games and scrimmages.

According to Celtics GM Danny Ainge speaking with the Boston Herald, Rondo took part in some 3-on-3 scrimmages a few weeks ago apparently against the direction of his doctors. But, he can play 1-on-1, and has been.

“He played 3-on-3 three weeks ago when he wasn’t supposed to,” said Ainge. “But I asked (the training staff) if it was OK for him to be playing one-on-one, and the answer was yes. Of course playing one-on-one is one thing. It doesn’t mean he’s ready to play to the NBA standard.”