WATCH: Zion Williamson's shoe explodes as he injures knee against UNC

Cleveland, OH (92.3 The Fan) – Zion Williamson left 36 seconds into Wednesday night's game against North Carolina. The freshman phenom planted on his left foot, his shoe exploded and he injured his knee according to Duke. 

Here’s the knee injury that ended Zion Williamson’s night.... pic.twitter.com/2gkKTq7gTl

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— Adam Schefter (@AdamSchefter) February 21, 2019

He walked off under his own power, but won't return. Williamson entered the game averaging 22.4 points and 9.2 rebounds per game. He's expected to be the first overall pick in the 2019 NBA Draft. 

UPDATE: Zion Williamson will not return. Knee.

— Duke Basketball (@DukeMBB) February 21, 2019

UPDATE: Duke says Williamson's right knee is stable, but he did suffer a mild sprain. They're expected to release more information on Thursday.

Coach K: “We’re very concerned about Zion. It’s a mild knee sprain. We will know about length of time tomorrow. It’s stable. Obviously it has an impact. You lose the NPOY on the 1st play.” pic.twitter.com/SCq6DBjnkJ

— Duke Basketball (@DukeMBB) February 21, 2019