Gerry Broome/Associated Press
The final score of one of the most anticipated college basketball games of the season quickly turned into an afterthought on Wednesday night when the star Duke freshman Zion Williamson left the game with a bizarre injury within a minute of the opening tip-off.
Williamson, who is widely expected to be the top pick in the N.B.A. draft later this year, appeared to twist his left foot as his sneaker fell apart. He then reached for his knee and walked off the court.
Duke announced before the end of the first half that he would not return to the game because of an injury to the knee.