Russell Westbrook has been sidelined indefinitely after fracturing his left hand during the Los Angeles Clippers' 140-115 win over the Washington Wizards on Friday.
Westbrook was hurt with around 10 minutes remaining in the second quarter, colliding with Jordan Poole as he attempted to poke the ball past the Washington guard.
The 2017 NBA MVP exited the game around two minutes later and reports have suggested he may miss around a month, having sat out 14 games when he broke his other hand in the second game of the 2014-15 season.
Clippers coach Tyronn Lue, however, was unable to offer a timeline on Westbrook's recovery after the game, saying: "I just feel bad for Russ right now.
"You never want to see a player get hurt. Poole drove around, and he tried to deflect it from the back. I think he hit his elbow with his hand.
"So we don't know what timetable, we don't know if he needs surgery or anything yet. But he's out right now. So we're just trying to figure it out."
Westbrook was the last remaining Clipper to have not missed a single game all season, but the team handled his absence well, improving to 38-20 with a dominant win.
James Harden led the team with 28 points while Kawhi Leonard added 27 and Paul George tacked on 22, as the Clippers bounced back from Wednesday's defeat to a LeBron James-inspired Los Angeles Lakers team.
For however long Westbrook is out, Lue knows he will be a major miss, saying: "He's going to stay engaged regardless. That's just who he is.
"We need him around, we need his energy, we need him talking, the way he leads.
"Until he is able to get back, we're going to miss him. So hopefully it's a speedy recovery and we get him back sooner rather than later, but I'm not sure of the timetable right now."