The Hawks said Hunter will miss at least one week after an MRI revealed a right hip flexor strain. The injury-plagued forward, who missed two months last season with a wrist injury, will be reevaluated in one week, meaning he'll sit out at least four games.
The Hawks added that Collins underwent an MRI scan that revealed a left ankle sprain and some swelling in the joint that will keep the six-year veteran out at least the next two weeks.
Hunter played only seven minutes during Wednesday night's win and Collins was hurt after a dunk that didn't count at the halftime buzzer.
Hunter, the No. 4 overall pick in the 2019 NBA draft, was averaging 14.9 points in 21 games this season. Collins, meanwhile, is averaging 12.3 points per game.
The Associated Press contributed to this report.