Will the Celtics make a deal?

Thursday’s 3 p.m. trade deadline is fast approaching and while the first-place Celtics don’t require a major roster shakeup, minor moves may be available for president of basketball operations Brad Stevens to bolster his squad for a championship run.

“The conversation that I’ve had, what I’ll share that I’ve had with Brad is, it’s about this year,” Celtics co-owner Wyc Grousbeck said in an interview with NBC Sports Boston on Jan. 28. “It’s not about this will pay dividends in three years or this will do this next year. It is this year. Muscle up and let’s go get the job done. So, that’s his instructions and that’s what we’re going to try to do. If there’s anything to do, we’ll do it. If not, we love this team. We’re top of the league right now.”

Stevens has options to assess ahead of Thursday’s deadline. Wednesday’s injury report, with starting big men Al Horford (right knee swelling) and Robert Williams (left ankle sprain) both out against the 76ers, re-emphasized a need for a backup big man. Williams has missed a handful of games since his return from left knee surgery and the 36-year-old Horford’s workload has been managed all year, and the Celtics need both of them healthy and fresh for a long playoff run. Luke Kornet has been productive in his role but the C’s could use some more depth in their frontcourt.

Yahoo Sports’ Jake Fischer reported Wednesday that the Celtics are exploring the outgoing value of Payton Pritchard and Danilo Gallniari as they search the market for a backup center, with San Antonio’s Jakob Poeltl and Orlando’s Mo Bamba being two possibilities.

Stevens is likely surveying the market about Pritchard, whose role has diminished in a loaded backcourt and has been vocal about wanting a bigger role. But the depth he has provided in the face of injuries has been valuable and it’s more likely he’s moved in the offseason.

Grant Williams, too, has reportedly been the subject of trade talks. The fourth-year forward failed to reach a contract extension with the C’s before the season and is set to hit restricted free agency this summer, but it seems unlikely that Stevens would depart with a key member of their rotation.

The Celtics could be in the mix for some wing depth, too. Sam Hauser has fallen out of the rotation while his shooting slump continued and Jayson Tatum’s minutes are trending toward a career-high number while he deals with lingering injuries.

Whatever happens, though, the Celtics feel like they’re in good shape. Malcolm Brogdon boasted that he thinks the C’s are the best team in the league and the locker room doesn’t seem worried about potential moves.

“I’m one of the players, man,” Brogdon said. “I’m not in the front office. We leave that to Brad Stevens. He’s one of the best in the business, so we trust him in making moves or not making moves.”

Horford and Williams both tested to see if they could go Wednesday but were both ruled out about an hour before tip-off. Horford was a late addition to the injury report but interim head coach Joe Mazzulla wasn’t sure how he suffered his injury. … Blake Griffin and Grant Williams started in place of them.

Marcus Smart missed his eighth consecutive game since suffering a right ankle sprain on Jan. 21 in Toronto.