TORONTO -- The shoulder injury that ended Raptors forward Pascal Siakam's season early will likely force him to miss the start of next season as well.

The Raptors said Friday that Siakam had surgery last week to repair a torn labrum in his left shoulder, with an anticipated recovery and rehabilitation time of five months. That timetable would mean Siakam can play again in early November -- about two weeks after the NBA plans to open the 2021-22 season.

Siakam was hurt May 8 against the Memphis Grizzlies, two days after he tied a career best by scoring 44 points against the Washington Wizards. The 2020 NBA All-Star missed Toronto's final four games because of the injury.

He led the Raptors in scoring this season, averaging 21.4 points. He also led the Raptors in minutes (2,006) and games started (56).