DALLAS (AP) - Luka Doncic has been ruled out of a game against Miami after the young Dallas Mavericks star sprained his right ankle early in the first quarter. The reigning rookie of the year's right foot landed on Heat guard Kendrick Nunn's foot on a drive less than two minutes into the game. Doncic lost control of the ball and limped off the court before going down behind the basket. He got up a short time later but went straight to the locker room. The team said X-rays on the ankle were negative.

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