Cleveland Cavaliers rookie point guard Kyrie to-day.

Irving suffered the concussion after being kneed in the head during the fourth quarter of Tuesday's loss to the Miami Heat. He experienced headaches after the game that worsened over the course of the night and during pregame activities prior to Wednesday's contest.

In 23 games played this season, Irving has averages of 18.0 points, 5.1 assists and 3.5 rebounds.