It appears Toronto Raptors centre Jonas Valanciunas is still not ready to return to action from his right ankle sprain. The team announced Sunday that the seven-footer is doubtful for Monday's Game 4 of the Eastern Conference Final against the Cleveland Cavaliers.

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The 23-year-old has not played since hurting himself in Game 3 of the second round against the Miami Heat.

In his absence, Bismack Biyombo has stepped in and has been a major contributor, especially in Saturday's Game 3 victory at the Air Canada Centre.