Thompson sprained the ankle on a drive in the third quarter of Monday night's 108-105 victory over the Los Angeles Lakers. Thompson remained in the game for more than three minutes of game action before leaving to re-tape the ankle. He then returned in the fourth quarter.
"He said it didn't hurt that bad at all. It wasn't a bad sprain," Kerr said at the team's practice facility on Tuesday. "So he went to the locker room, got it re-taped. They got it checked out. [The trainers] said he was fine."
Kerr said the injury revealed itself as more significant after the game.
"He came back and played and a lot of time the adrenaline just carries you through during a game and I think that's probably what happened, but he didn't re-injure it when he went back out," he said. "It's just a normal postgame swelling and it turned out to be a little more than expected."
Kerr indicated that guard Justin Holiday would likely take Thompson's spot in the starting lineup.
Kerr said he saw some benefit in losing his star for a stretch, saying, "It's not a bad thing. We get playing time for Justin [Holiday] and [Leandro Barbosa] and play Shaun [Livingston] a little bit more, play Harrison [Barnes] in that spot. There's always a silver lining and ways to help your team through adversity."