Golden State Warriors forward Jonathan Kuminga suffered a bone bruise in his knee during Thursday's loss to the Dallas Mavericks and is sidelined without a timetable to return. 

The Warriors announced his diagnosis on Sunday. “A re-evaluation date will be determined in the coming days,” the Warriors announced. 

The injury arrives at a critical juncture for the Warriors in terms of their relationship with Kuminga. Kuminga was believed to be on the trade block ahead of the NBA's Feb. 5 trade deadline, but he'd recently returned to the rotation due to an injury to Jimmy Butler. 

Kuminga left Thursday's game with the injury. He was then listed as out for Saturday's game against the Minnesota Timberwolves that got postponed until Sunday (weather) with what the team initially listed as knee soreness. 

An MRI on Friday confirmed that Kuminga sustained a bone bruise due to a hyperextension in his knee. The Warriors did not announced the injury until Sunday.

Kuminga recently rejoined the rotation due to the season-ending ACL tear to Butler. He'd previously issued a trade demand after falling out of head coach Steve Kerr's rotation. The injury to Butler opened up a chance for Kuminga to re-establish himself in Golden State's rotation. His future with the franchise remains unclear ahead of the upcoming trade deadline.