Duke commit Zion Williamson left Wednesday's McDonald's All-American Game after injuring his thumb on a drive to the basket.
The No. 2 prospect in the country for the class of 2018, Williamson planted his hand on the ground to balance himself, but his thumb bent awkwardly in the process.
Williamson will see a specialist to determine the extent of the injury tomorrow, according to ESPN's Jeff Goodman.
Williamson won the McDonald's All-American dunk contest in dramatic fashion earlier in the week, and scored eight points in 17 minutes before the injury.