DALLAS -- Mavericks rookie Cooper Flagg did not return after halftime of Wednesday's game against the Denver Nuggets because of a sprained left ankle.
The team announced early in the third quarter that Flagg, the No. 1 overall pick, had been ruled out for the rest of the game.
Flagg twisted the ankle while defending Denver's Peyton Watson on a drive with 6:01 remaining in the second quarter.
Flagg, who was called for a foul on the play, limped off the floor and straight into the tunnel with Mavs athletic trainer Jana Austin following him.