If the Toronto Raptors are going to advance to the Eastern Conference Final, they'll have to do it without one of their top contributors.

The team announced Sunday centre Jonas Valanciunas will miss the remainder of their series against the Miami Heat with a sprained ankle. Valanciunas suffered the injury in the third quarter of Game 3 against the Heat Saturday after falling awkwardly going for a rebound.

Valanciunas had been one of the Raps best players against the Heat, and was averaging 15 points and 12 rebounds in 10 playoff games this season.

The Raptors lead the Heat 2-1 in their Eastern Conference Semifinal series.