The Toronto Raptors have signed centre Jonas Valanciunas to a long-term contract extension.

Terms of the deal were not released, but Yahoo Sports' Adrian Wojnarowski is reporting the deal is worth $64 million over four years with the final year being an option.

In his third season with the Raptors, Valanciunas averaged 12 points and 8.7 rebounds in 80 games.

The seven-foot centre was playing with the Lithuanian national team before leaving to undergo medical examinations back in Toronto.

The 23-year-old was drafted fifth overall by the Raptors in 2011.