Al Horford hit the game-winning layup with 5.5 seconds left in overtime as the visiting Boston Celtics beat the Philadelphia 76ers 101-98 Saturday to take a 3-0 lead in an Eastern Conference semifinal series.

LeBron James banked in a running floater as time expired to cap off a 38-point effort, and the Cleveland Cavaliers took a commanding 3-0 series lead with a dramatic 105-103 victory over the visiting Toronto Raptors on Saturday night at Quicken Loans Arena.