The Spurs phenom suffered a season-ending injury. A physician explains what deep vein thrombosis is, its causes and treatment, and Wembanyama's likely prognosis.

San Antonio's All-Star center will miss the rest of this season due to deep vein thrombosis in his right shoulder.

At 23-29, the Spurs occupy just the No. 12 seed in a crowded Western Conference. They are a scant 3.5 games behind the No. 10-seeded Golden State Warriors (28-27), but without their best player, they seem doomed now to miss the play-in tournament entirely and head straight for the lottery.