Celtics president Danny Ainge insists that there is no need to worry about Kevin Garnett's lingering knee injury.

"Nothing has changed from our initial diagnosis to where we are now," Ainge said on Monday. "We're just being cautious."

Garnett will miss his 15th game because of the injury on Wednesday night, but Ainge contends that his condition hasn't worsened.

"This isn't a setback," Ainge said. "Not at all."

Boston is looking at Friday's game against Atlanta as a possible return date.

"We're still evaluating the process," Ainge said. "This is still a day-to-day evaluation. I think KG is playing great. He doesn't feel 100 percent, and you can see that. But the more rest we can give him, the better off we are going to be in the long run."