The AP reports:

Pierce at Buzzer, Celtics beat Heat

Paul Pierce’s 21-footer at the buzzer Friday night gave Boston a 100-98 win over Miami in Game 3 of the teams’ Eastern Conference first-round series. The Celtics lead 3-0, and will try for a sweep in Miami on Sunday afternoon…

Game tied at 98, less than 20 seconds left, the Heat had exactly what it wanted—the ball in Dwyane Wade’s hands. The 2006 NBA finals MVP tried a straightaway 3-pointer and missed with 14 seconds left, which is where the game and perhaps the season slipped away from Miami. Wade crumpled to the court in a heap, his left calf cramping for the second time in the final quarter…

Pierce finished with 32 points and Ray Allen added 25 for the Celtics, who got 17 from Rajon Rondo and 16 from Kevin Garnett.

Wade finished with 34 points, eight assists and five rebounds for the Heat, who rallied from a nine-point deficit in the fourth quarter to take the lead. Michael Beasley scored 16 points, Wright scored 15 and Udonis Haslem and Mario Chalmers each scored 10 for the Heat.