Displaying the same defensive intensity that earned them the NBA title in 2008, the Celtics frustrated the Magic early and survived some nervous moments late to take the 1-0 advantage in the Eastern Conference Final matchup.Ray Allen scored a game-high 25 points and made two free throws with six seconds left to preserve the win after Boston's 20-point lead in the second half was trimmed to just two in the final seconds."As a veteran team everyone was waiting for the playoffs and when we got here we hit the ground running," Allen told reporters three days after his team completed an upset victory over the top-seeded Cleveland Cavaliers in six games.Suffering their first loss of the postseason, the Magic trailed the whole way and were stymied as leader Howard was tamed in the paint and held to 13 points on 3-for-10 shooting while committing seven turnovers.Vince Carter led the way with 23 for Orlando, which climbed back into the game with a 10-0 run that pulled the team within 88-85 before the Celtics clinched the victory with free throws.