Paul Pierce's 34 points, including a game-tying 3-pointer in the final seconds of regulation, helped the Boston Celtics edge the Knicks 115-111 in overtime at the TD Garden Sunday.

New York built a double-digit first half lead but were outscored 29-16 in the third helping Boston to a 15 point lead. Trailing by three with under ten-seconds to play, Pierce nailed an off balance 3-ball from the top of the key to force the extra session.

Rajon Rondo tallied a triple-double - 20 assists, 18 points and 17 boards - for the Celts. Kevin Garnett and Brandon Bass added 18 apiece.

Carmelo Anthony led New York with 25 points, followed by Amar'e Stoudemire's 16 points and 13 rebounds as the team failed to breech the .500 mark for the fourth consecutive time. Jeremy Lin, Iman Shumpert and J.R. Smith each had 14.

As a team, the Knicks finished with 22 turnovers with Lin and Baron Davis each giving the ball away six times.

New York (18-19) will visit the Mavericks on Tuesday night.