Bogut did not play in overtime, but finished with two points and nine rebounds in nearly 32 minutes.
The eight-year NBA veteran is averaging 7.4 points, 10 rebounds and 1.8 blocks in 66 games for Golden State this season.
Results of the X-ray were not immediately available.
Warriors coach Mark Jackson was taking a wait-and-see approach, telling reporters after the game that he'd wait to see how the situation plays out.
The apparent injury comes four games into Bogut's return from a pelvis contusion that sidelined him for four games
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