There has been speculation that Collins could be out for the remainder of the season. That would be a major blow to the Hawks — who are battling for playoff positioning one season after advancing to the Eastern Conference finals.
Collins, 24, is 6-foot-9 and has been playing through pain for the past several weeks, per reports. He is averaging 16.2 points and 7.8 rebounds in 54 appearances.
The Hawks are expected to call up rookie forward and first-round pick Jalen Johnson from the G League to help replace Collins.