Mavericks' Luka Doncic Suffers Ankle Injury vs. Heat; X-Rays Negative

Dallas Mavericks guard Luka Doncic suffered an ankle injury during Saturday night's game against the Miami Heat and was unable to return.

Mavs play-by-play announcer Chuck Cooperstein reported X-rays were negative.

After the game, head coach Rick Carlisle told reporters Doncic wasn't expected to play Monday against the Milwaukee Bucks. ESPN's Adrian Wojnarowski reported Doncic was diagnosed with a moderate ankle sprain. ESPN's Tim MacMahon noted the guard was working out on the team's underwater treadmill postgame.

Doncic, 20, had two points and one rebound in just two minutes of action before exiting.

The Rookie of the Year has been largely healthy throughout the season.

When on the floor, Doncic has been the shining bright spot in a down Mavericks season. He's averaging 30.4 points, 9.9 rebounds and 9.3 assists per game on 48.2 percent shooting.

"I say it all year—for a 19-20 year old, his overall aura and game is really impressive," Dirk Nowitzki told reporters last season. "Luka's already a confident young player, and he's already found his way. Sky's the limit if he keeps working and stays injury-free. He's gonna be fun to watch for this franchise for a long, long time."