CHICAGO (AP) -Bulls guard Kirk Hinrich needs surgery to repair a torn ligament in his right thumb and will miss up to three months.
The injury occurred during Chicago's 100-83 victory over Phoenix on Friday.
Hinrich, making his first start, was injured in the third quarter and left the game with five points, five assists and five steals. The Bulls initially called it a sprain, but an exam before Saturday night's game against Cleveland revealed a torn ulnar collateral ligament.
The surgery is scheduled for Tuesday.
In his sixth season, Hinrich is averaging 8.3 points and 4.0 assists. The Bulls drafted Derrick Rose with the No. 1 pick, and Thabo Sefolosha started the first five games at shooting guard with Hinrich in a reserve role. But coach Vinny Del Negro juggled the lineup on Friday, with Hinrich replacing the struggling Sefolosha.

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