WALTHAM — After Kevin Garnett played 30 minutes in his return from a knee injury, Doc Rivers said he will not limit his playing time. Garnett practiced with the Celtics on Saturday and Rivers will continue to keep him on the court.

“Someone asked me before the game if there was a minute restriction, and there wasn’t,” Rivers said. “Again, this was something totally different from last year’s injury. That’s why we were really not concerned about the minutes. Our whole concern with him minute-wise was more conditioning. It had nothing to do with the knee.”

Garnett scored 13 points (4-9 FG, 5-5 FT) and grabbed four rebounds in his first game back on Friday against the Trail Blazers since hyperextending his knee in December.