Reaves (heel) didn't participate in Saturday's practice, Dave McMenamin of ESPN.com reports.
Reaves sustained a bruised left heel in Wednesday's win over Milwaukee and is considered day-to-day, though this update is not encouraging ahead of Sunday's game against Phoenix. If the 28-year-old guard is unable to suit up, Ziaire Williams, Quentin Grimes (finger) and Collin Sexton (head) would be candidates for increased playing time.