Yoon S. Byun/Globe Staff

Paul Pierce reacted after hitting a three-pointer in the third quarter. Pierce led all scorers with 34 points, including four from beyond the arc.

Yoon S. Byun/Globe Staff

Knicks guard Jeremy Lin ran onto the court before the Knicks faced the Celtics at TD Garden Sunday.

Yoon S. Byun/Globe Staff

Rajon Rondo hugged Jeremy Lin before Sunday's game.

Yoon S. Byun/Globe Staff

Rondo guarded Lin in the first quarter. The Celtics held the Knicks point guard to 14 points.

Yoon S. Byun/Globe Staff

Lin was swarmed by Celtics defenders Avery Bradley, Mickael Pietrus and Ray Allen. Lin turned the ball over six times.

Jessica Rinaldi/Reuters

Rondo passed against Knick J.R. Smith. Rondo racked up 20 assists in the win.

Jessica Rinaldi/Reuters

Knicks rookie guard Iman Shumpert went up for a shot between Kevin Garnett and Ray Allen in the second half.

Michael Dwyer/Associated Press

Pierce controlled the ball as Lin and Shumpert defended in the third quarter.

Yoon S. Byun/Globe Staff

Pierce hit a three-pointer, tied the game at 103-103, and left 4.9 seconds on the clock to send Sunday's game into overtime.

Jessica Rinaldi/Reuters

Lin called a time out in overtime.

Yoon S. Byun/Globe Staff

Paul Pierce hugged Lin after the Celtics won in overtime.