The Lakers listed Bryant as probable on Friday.
The fifth-leading scorer in NBA history left the Bradley Center using a crutch Thursday following Los Angeles' 113-103 loss to Milwaukee. Bryant has been bothered by the bone spur for several games, and he got treatment on the injury in Sacramento on Friday.
Bryant's injury apparently isn't related to his sprained left ankle, which occurred earlier in Atlanta.
Lakers guard Steve Nash is listed as questionable for Saturday's game with discomfort in his right hip and hamstrings. The two-time MVP point guard got hurt Monday at Golden State.
Los Angeles (37-36) has lost four of five.