Jalen Williams’ effort to put last year’s injury-riddled season for the Thunder behind him ran into a scary setback on Sunday, as he took a hard fall in which his left ankle appeared to bend the wrong way, Clippers reporter Ohm Youngmisuk writes (via Twitter), though it was alternately described as a knee injury by Kurt Helin of NBC Sports.

Williams attempted to get up, using teammate Chet Holmgren for help, before the trainers made him stay down, per Rylan Stiles of Locked On NBA (Twitter link). The training staff then brought the stretcher over to him as his teammates attempted to comfort him.

The crowd chanted his nickname, “J-Dub,” as he was being carried off the court, which he responded to by giving two thumbs up, Youngmisuk notes (Twitter link).

After the game, teammate and two-time MVP teared up when discussing Williams, ESPN’s Tim MacMahon notes (Twitter link). “I just feel bad for him, ” Gilgeous-Alexander said.

“It’s obviously going to be tough without a player like that,” Gilgeous-Alexander continued, per MacMahon (via Twitter). “But he’s not gone forever. He’ll be back better than ever, and we know it. We’ve just got to hold the fort down until he comes back.”

Head coach Mark Daigneault discussed the injury after the game, though he didn’t go into further detail or speculation.

“Those are tough, man. We’re not doing great,” he said, per Justin Martinez of The Oklahoman (Twitter video link). “That’s tough on the guys. Everyone empathizes, I think both teams, in those situations. We’re not doing great.”

Daigneault said that it was important to him to get the team together in order to process the injury and move forward as a group, per Martinez (Twitter video link).

“I think it starts with just getting everybody and regrouping in a situation like that, especially when it’s ugly like that, which is what we’ll focus on first before we move on to anything else,” he said. “We’ll come in tomorrow, we’ll get everybody together and we’ll have more information for the team at that time. I know they’ll be hungry to know how he’s doing and stuff like that, and then we’ll move from there. But, at this point, you’ve just got to allow yourself to feel the way you do.”

Williams played just 33 regular-season games last season and was in and out of the playoff rotation as he dealt with multiple wrist and hamstring injuries.

The extent of the ankle injury has yet to be determined, but the All-NBA forward is likely to miss extended time.