Jonathan Isaac hyperextended his left knee during the Orlando Magic's 122-101 win over the Washington Wizards.
Isaac will be re-evaluated after undergoing an MRI on Thursday.
Isaac said that he felt he escaped a serious injury.
"So as soon as it happened, I just naturally start thinking the worst. 'Wow man, it's over.' But as I was down there, it started to feel better and better just being down there. So I kind of felt, just the reassurance that I was going to be [OK]," said Isaac.