Mills won't start Sunday's game against the Wizards.
Mills will enter the starting lineup for Wednesday's game against the Cavaliers.
Mills supplied 13 points (5-7 FG, 3-4 3Pt) and two rebounds across 16 minutes during Friday's 107-100 loss to the Thunder.
Mills has agreed to a deal with Miami on Tuesday, Adrian Wojnarowski of ESPN reports.
The Hawks will waive Mills on Thursday, Shams Charania of The Athletic reports.
Mills (illness) isn't on the injury report for Wednesday's game versus the Hornets, Brad Rowland of the Locked On Podcast Network reports.
Mills (illness) has been ruled out for Monday's game against Chicago.
Mills (illness) is listed as doubtful ahead of Monday's game against the Bulls.
Mills (illness) will not play in Saturday's game versus Houston.
Mills (illness) is listed as questionable for Saturday's game versus the Rockets, Brad Rowland of the Locked On Podcast Network reports.