Ray Allen hit a three-pointer with 2.0 seconds left in regulation to give the Celtics a 118-115 victory over the Bulls in Game 2 of their first-round series.
Allen made a three with 27.0 seconds left on the clock to give Boston a 115-113 lead over Chicago, but Ben Gordon hit a jumper to tie the game with a little over 12 seconds remaining on the following possession.
The win allowed the Celtics to tie their series at one game apiece as the teams head to Chicago for Games 3 and 4.
Gordon starred in the game, scoring 42 points on 14-for-24 shooting.
Allen, along with Glen Davis, led Boston to the win.
Allen netted 30 points on 9-for-18 shooting, after suffering through a horrible performance in the team's Game 1 loss.
Davis had 26 points and 9 rebounds for the Celtics, and Rajon Rondo chipped in 19 points, 16 assists and 12 boards.