Celtics forward Kevin Garnett admitted on Sunday that his actions against the Heat on Saturday night could prove costly.

"You make your bed, you have to lay in it," he said. "So if I have to deal with it, then it is what it is. I'm just smarter than that. Composure is everything in the playoffs. ... I have to keep my composure in a situation like that."

Garnett threw an elbow at Heat forward Quentin Richardson in the final moments of Boston's victory over Miami.

He said Richardson came over "talking nonsense," and Richardson seemed to support that, saying of Paul Pierce: "He was on the ground crying. I don't know what was going on -- two actresses over there, that's what they are."