MIAMI - Celtics captain Paul Pierce is hoping the team’s championship runs are not over, making an appeal for Kevin Garnett to extend his Celtic career after a 101-88 loss to the Heat Saturday night in Game 7.

“He’s done everything for my career, just his locker room presence, his desire, his determination,’’ Pierce said of Garnett. “Just his leadership. I said before, when Kevin first got here he really changed the culture of everything we did around here, you know, practice habits to the discipline. He made everybody accountable, from the ball boys to the chefs to the guy who flew the plane, everybody was accountable.