TORONTO (AP) - All-Star point guard Kyle Lowry says he's doubtful to play for Toronto on Sunday in Game 4 of the Raptors' Eastern Conference semifinal series against the Cleveland Cavaliers.

Lowry has a sprained left ankle.

He attempted to warm up before Game 3 on Friday before the determination was made that he could not play. Lowry said trying to play likely made the ankle worse.

The Raptors trail the series 3-0. No team in NBA history has successfully rallied from such a deficit.