College basketball players like Zion Williamson don't need to the risk of putting their body on the line for no money. In fact, he is so highly sought after by the NBA, he might be losing money with this injury. While he is not unanimously expected to go No. 1 in the NBA Draft, many picked him for that position. The injury might scare away teams at the top and cause him to fall.
Until college players get paid, there is no reason for Williamson to sacrifice his body for nothing. He needs to assure that he gets healthy by sitting out the rest of the season and prepare for the draft.
When Duke came back from a 23-point deficit, Williamson took pride in not quitting. There is no way he should walk away now when Duke has national championship aspirations.
He said as much when people told him to sit out earlier in the year to Sports Hub Triad:
I just can’t stop playing. I’d be letting my teammates down. I’d be letting Coach K down. I’d be letting a lot of people down. If I wanted to sit out, I wouldn’t have went to college. I came to Duke to play.