Duke Blue Devils freshman Zion Williamson suffered a knee injury in the first minute of Wednesday's loss to the North Carolina Tar Heels after his left shoe—which was a Nike—ripped open as he planted his foot.
"We are obviously concerned and want to wish Zion a speedy recovery," Nike said in a statement, per Darren Rovell of Action Network. "The quality and performance of our products are of utmost importance. While this is an isolated occurrence, we are working to identify the issue."
Duke head coach Mike Krzyzewski told reporters the team was "very concerned" about Williamson and deemed the injury a "mild knee sprain.