Just over 12 hours after a humbling loss to the Cavaliers at the Garden, the Celtics got a boost at practice in Waltham when Kevin Garnett and Paul Pierce returned from separate foot injuries.

Garnett has missed the last eight games due to inflammation from bone spurs in his left ankle. The Celtics have gone 3-5 in his absence as they look to lock up the seventh seed in the Eastern Conference and avoid the Heat in the first round of the playoffs.

“I’ve never come into postseason 100 percent, so it’s nothing new,” Garnett told reporters. “But I do want a rhythm. I don’t want to go into the postseason and have no rhythm. I want to be healthy. That’s my first priority.”

Garnett said when and how much he plays in the final six games will be decided after a discussion that includes himself, coach Doc Rivers and medical staff.

“I’m going to practice today and Doc and I will have a conversation and make some decisions for the future.”

Avery Bradley, however, did not take part, as he was still nursing soreness from taking an elbow to his left collarbone from Kyrie Irving in the fourth quarter of Friday’s game.