Celtics rally to beat Hawks, square series

Amir Johnson scored his team's first five points of the OT and Isaiah Thomas nailed a 3-pointer from the right corner to ice the game with 30 seconds left.

With both teams holding serve on their home floors, Game 5 is in Atlanta on Tuesday night.

Marcus Smart scored 11 straight Celtics points in the fourth quarter, set Johnson up for the first two baskets of overtime and played tough defense on Millsap down the stretch. Millsap, who also had 13 rebounds, scored just two points in the final 10:33 of the game.

With Patriots owner Robert Kraft, coach Bill Belichick, tight end Rob Gronkowski and running back LeGarrette Blount cheering on the Celtics from courtside, the Hawks hit just one of their 11 overtime shots as the Celtics pulled away.

When the game ended, Thomas took his shirt off and gave it to Blount.

Atlanta thought it had taken a one-point lead on a Kent Bazemore 3-pointer with 1:52 left, but a review overturned the basket on a 24-second violation.

Thomas, who added two free throws with 20.3 seconds left, led the Celtics with 28 points -- after scoring 42 in the Game 3 win -- and added six assists and four rebounds. Smart scored 20 points and added eight rebounds and five assists, while Evan Turner delivered 17 points, seven rebounds and six assists and Jonas Jerebko 16 points and 10 boards in his second straight double-double as a starter.

Jae Crowder had 12 points and Johnson finished with nine points and nine rebounds for Boston.

Jeff Teague had 13 points and five assists for the Hawks, and was 1-of-10 from the floor when he calmly drained two 3-pointers in the final minute of regulation to give his team a 92-90 lead. Thomas then tied the game with a drive with 15 seconds left and Teague was isolated with the ball when he lost control as time ran out.

Hawks center Al Horford grabbed nine rebounds, but scored just five points in the loss.

Atlanta guard Dennis Schroder, booed loudly by the Boston crowd whenever he entered the game or touched the ball because of his battles with Thomas in Game 3, was 3-of-13 from the floor and scored just seven points off the bench. Teague finished 4-of-18.

Millsap was 10-of-32 from the floor and 2-of-9 from 3-point range in the first three games of the series -- including 4-of-21 and 1-of-7, respectively, in the last two. But he went 11-of-16 in the first half Sunday, also hitting 3-of-4 from behind the arc and grabbing eight rebounds.

The first part of the third quarter quickly became a nightmare for the home team, with the Celtics failing to score for the first 4:36. Millsap scored eight straight points in the 14-0 burst that gave Atlanta its 16-point lead.

But the Hawks then went cold as Thomas brought the Celtics back in the middle portion of the quarter. Thomas' 3-pointer cut the lead to eight with 5:05 left. Atlanta led by 10 but the Celtics went on a 10-3 run down the stretch in the quarter, finishing with an 8-0 keyed by two 3-pointers by Jerebko.

Jerebko then scored the first two baskets of the fourth quarter and the Celtics had the lead.