Celtics fans aren’t going to be thrilled about the latest report on center Robert Williams and his injured knee.

NBA insider Shams Charania appeared on

According to @ShamsCharania on #RunItBack this morning, #Celtics big man Robert Williams recently underwent a PRP procedure in his knee and could return in the second half of the season pic.twitter.com/rSb7EPsWP2

— FanDuel TV (@FanDuelTV) October 18, 2022?s=46" target="_blank" rel="noopener">FanDuel TV on Tuesday, and gave his latest intel on Williams, who has been dealing with various injury issues and multiple surgeries in his left knee. The news isn’t good: Williams, originally on track for a possible return around Christmas, is now expected to be on the shelf well into the second half of the season.

“I’m told that Robert Williams underwent a PRP [Platelet-Rich Plasma] injection on Monday to continue to promote healing in that injured knee, and he’s going to return at some point during the second half of the season,” Shams said. “I’m told his hope is sometime in December or January, but it could even be later than that.”

It seems as though the Celtics are deciding to take their time and get Williams back to 100 percent before rushing him back on the court in game action. He returned for the 2022 playoffs only three weeks removed from meniscus surgery, and that seems to have only led to more problems with his knee.

The way Shams explains it, the Celtics are gearing down with Williams and getting him right. They can likely win plenty of games without him anyway, as long as Jayson Tatum and Jaylen Brown are healthy. But interestingly enough, Shams also indicated that Williams would continue to play through the injury if this were happening at playoff time.

“The Celtics are going to be very cautious,” Shams continued. “[Williams] tried to get back on the floor during the playoffs, when that knee was just a few weeks off of meniscus surgery. So, I think they’re not going to make that same decision now. If it were the playoffs right now, he probably would play. But as of right now, Robert Williams is out indefinitely, and hopefully coming back in the second half of the season.”

The part about playing through the injury seems like some green-colored nonsense. And wouldn’t be smart, anyway. They’ve pushed Williams hard enough. Get that knee right and try to win without him, unless you want to just run that knee into the ground.

Anyway, in the meantime, the Celtics have a regular season to play. You can hear the call of Tuesday night’s 2022-23 season opener against the Philadelphia 76ers on 105.7 WROR, starting with pregame coverage at 7 p.m. ET.