WALTHAM, Mass. -- Some leftover headlines after the Boston Celtics practiced on Saturday at the team's training facility:

Olynyk out until after All-Star break

Celtics coach Brad Stevens said he was told before Saturday's session that injured second-year big man Kelly Olynyk would be sidelined "at least another week-plus," and said he does not "anticipate him playing until after the All-Star break."

Olynyk sprained his right ankle after landing awkwardly on an opponent's foot in Portland earlier this month. The Celtics play five games over the next seven days before throttling down leading into an extended All-Star break. The team seems content to use the upcoming break in the schedule to get Olynyk back to 100 percent for when the team resumes play on Feb. 20 in Sacramento.

The Canada native was named to the World roster at the Rising Stars Challenge at All-Star weekend, but his progress from the ankle injury will dictate whether he plays in the annual rookie/sophomore showcase.

"I think that, if he’s fully healthy and he could play a game for us on that day, then he’ll play in it," said Stevens. "If he’s not fully healthy and he wouldn’t normally play a game for us, then he won’t play in it."

Still Smarting about offensive foul

Celtics rookie Marcus Smart said he was still upset that he was whistled for an offensive foul for kicking out his leg and making contact with an opponent on a made 3-pointer as Boston attempted to rally back from a 19-point deficit against the Rockets.

"Actually, I am [upset] because when shooting, and they slap my hand back, all my momentum forces my body to come forward and that forces my legs to get kicked out," explained Smart. "I talked to the official and he said that the ball was so far gone that that contact shouldn’t affect me. But then once I told him what they were doing and it was forcing me to do that, then he said he’d look at it. I was surprised that they called it, but at the same time I wasn’t."

Replays show that Smart flared his right leg out to initiate contact with a charging Corey Brewer before the two tumbled to the ground. Smart has a reputation for embellishing a bit to draw whistles and it seems the referees got this one right.

That didn't stop Smart from lamenting his rookie status.

"[The referee] didn’t say that, but that’s kinda went through my head -- I’m a rookie," said Smart. "That’s the non-surprising factor that came in."

Smart does deserve credit for avoiding foul situations while playing some inspired -- and physical -- defense against James Harden during Friday's loss.

Asked for his secret to success against Harden, Smart said: "Keep my hands back. Everybody knows that he shoots a good amount of free throws because he draws that contact and he gets those calls, so I just tried to keep him in front of me and show my hands and I think I did very well on that part."

Shooting for the stars

With a matinee looming Sunday, the Celtics went through a light session that closed with a heavy emphasis on shooting drills.

That was by design for a team that struggled to knock down shots on Friday, including some bad late-game misses by Jared Sullinger from beyond the arc.

"It's good to get back in the gym, good to do a little shooting at the end of practice today just to see the ball go through the net," said Stevens.

Sullinger acknowledged his shooting woes and said the key for him is simply getting in the gym and shooting until he's comfortable again.