Nike investigates Duke star's broken shoe

Zion Williamson, projected to be the No. 1 pick in this year's NBA draft, injured his knee when his sneaker tore apart during Duke's latest game against UNC.
2:43 | 02/22/19

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Transcript for Nike investigates Duke star's broken shoe
Now to those new questions, all those questions about Zion Williamson's future. He hurt himself after he split his shoe openen 0 the court leading to a knee injury and some say he shouldn't return and wait for the pros. Adrienne Bankert is here with more. I would love to know your opinion on this, Michael, considering your sports background. Everybody has an opinion about this. It was ugly. Now people are debating whether he should hold up, heal or press on? Slipping and injured is Zion Williamson. Reporter: When Zion Williamson's Nike sneaker busted open on the court less than a minute into duke's Wednesday night game, the star forward went down hard and so did Nike. The company's stock slidingn the news closing the day nearly a point losing an estimated billion dollars following the injury of college basketball's number one player. Williamson anticipated to be the top pick at the NBA draft in June curled up in pain after his left shoe broke open diagnosed with a mild snow sprain he never anticipated sporting events of the year. Ticket prices surpassed even the super bowl. Famous fans like former president Obama watching the drama from the sidelines. Nike immediately apologized on Twitter calling it an isolated occurrence and promised to look into what caused the shoe to break. The sneaker giant partway through a 12-year deal as the exclusive supplier of duke's uniforms and shoes. Reportedly the brand holes 90% of the basketball market. Along with Nike Adidas and under Armour lucrative apparel deals for millions of dollars, money the players don't see. With rising stars like Williamson using their careers as a launchpad to go pro. This morning, many question whether he should return to the court at all and risk another injury or ride out the rest of the season on the bench while he awaits the draft. Of course, he should sit down. If he's healthy you already started. You finish what you started. If you're going to quit you shouldn't have played in the first place. Okay, it was a shoe that broke. Man, duke plays Syracuse tomorrow. No word whether Williamson will play Saturday. If he's hurt he shouldn't play but I think he's on a team. He wants to not let his teammates down. It's a big deal. Number one team in the country. They want to continue that. And the players did say they had to adjust because, again, he is the star and having him get out 36 sicks into the game, big deal. I always laugh at people who worry about the shoes. They're not playing like that, kid. You don't have to worry about your shoe. A little different on the sidewalk as it is on the court. Yes. Thank you, Adrienne. We move on to the

This transcript has been automatically generated and may not be 100% accurate.

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