Pregame: Sullinger's back vs. Pacers

BOSTON -- After missing the past three games due to a mild concussion, Boston Celtics second-year center Jared Sullinger returns to game action on Saturday night against the Indiana Pacers.

Sullinger will come off the bench in his return. The Celtics will stick with their starting 5 from Wednesday's win over the Atlanta Hawks in Rajon Rondo, Jerryd Bayless, Jeff Green, Brandon Bass and Kris Humphries.

The Celtics will be without Gerald Wallace (knee), Kelly Olynyk (toe), Avery Bradley (ankle) and Vitor Faverani (knee).

"Olynyk is pretty darn close to returning, it looks like," said Celtics coach Brad Stevens. "I don’t want to say for sure Wednesday [against Golden State], but that’s more likely than not. Bradley, again, like I said [Friday], will be re-evaluated at the end of this upcoming week. ... [Team doctors] are continuing to try to figure [Faverani's knee] out. And they may end up doing a light scope for something like that. But that has not been determined yet."

A recent MRI revealed that Wallace has a torn meniscus and he said he'll undergo season-ending surgery as early as Tuesday.

"I'm very disappointed, just the simple fact that the injury, not knowing how long I’ve been playing with it and what was going on," said Wallace. "It was just a pain that kinda felt different in my knee. I'm disappointed to end my season this way, just when it felt like I was starting to play at a pretty high level."

For the Pacers, George Hill is out with a bruised left shoulder. C.J. Watson will start in his place.