The Boston Celtics scored just 7 points in the first quarter, the lowest-scoring first quarter in an NBA playoff game since the league went to a shot clock in 1954, and lost to the Atlanta Hawks 89-72 Tuesday night, giving the Hawks a 2-0 lead in the opening round of the playoffs.

Boston went just 3-for-23 from the field and 0-for-6 from three-point range over the first 12 minutes. Isaiah Thomas went 1-for-6, and Marcus Smart, who started in place of the injured Avery Bradley, missed all five of his shots.

Boston trailed 24-7 at the end of the quarter. The Celtics were down by just 10 points in the second quarter but never cut the deficit to single digits.

Thomas finished with a team-high 16 points on 4-of-15 shooting. Amir Johnson had 14 points and 8 rebounds, and Evan Turner scored 12 points for the Celtics.

Al Horford and Kyle Korver had 17 points apiece, combining to go 12-for-20 from the field and 8-of-11 from three-point range.

The Celtics played without two key players. Bradley, the team's second-leading scorer, suffered a strained hamstring in game 1 and is unlikely to play the rest of the series. Kelly Olynyk, a key player off the bench, missed the game because of a lingering shoulder injury.

Game 3 of the series will take place Friday night in Boston.

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