Charles Barkley is still trying to figure out why this is even a debate.

The NBA Hall of Famer recently took serious issue with anyone suggesting that Zion Williamson should sit out the rest of the season after suffering a mild knee issue. As Barkley notes, many of the greatest players in NBA history played several years in college.

Following Williamson’s injury this week in the North Carolina game, the Duke star is listed as day to day with a mild knee sprain. The Blue Devils had been ranked No. 1 in the nation before Duke lost to UNC without the services of Williamson.

Here are Barkley’s thoughts on the debate, which were shared online by TNT Sports: