Kevin Durant suffered a strained left hamstring in the Thunder's 125-101 win over the Wizards Tuesday night.
It happened when Kris Humphries fouled him on the way to the basket at the end of the second quarter. Durant did not return from the locker room after halftime.
"I think right now it's just a hamstring strain," Oklahoma City coach Billy Donovan said after the game. "I didn't really get a chance to talk to the medical staff too much."
"How severe it is, I have no idea. The impression I got is it's not. So we'll have a couple of days here to get back and we'll find out a little bit more tomorrow where he's at."
The Thunder have two days off before playing their next game at home.
Durant spoke to the media himself outside the locker room.
"It's a little sore man, but I'll just get it checked out tomorrow," he said. "I'll see what it's looking like after that."
When asked if he'd ever dealt with a hamstring injury before, he said no.
"First time. I think after that foul, I came down a little awkward, landed a little harder than I tried to and it pulled."
Durant rejected the idea that he might be more cautious with any injury after missing most of the 2014-15 season with a fractured foot.
"No, I mean whenever I feel right, whenever I feel ready to play again, that's when I'll play."
Before leaving, he was asked if he heard booing from the Verizon Center crowd.
"Nah I didn't. They were? I don't really care," he said.
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