"The Celtics have agreed in principle with guard Nate Robinson on a new contract, a team official told The Associated Press on Friday.

A Celtics spokesman did not immediately respond to a request for comment, but the official confirmed the agreement to the AP on the condition of anonymity because the contract was not yet signed.

The Boston Herald reported Robinson will get $4 million a year for two seasons. The former Knicks player wrote on his Twitter page Friday that he was going back to the Celtics.

Robinson was acquired at the trade deadline but had fallen out of the rotation by the end of the regular season. He re-emerged in the playoffs to help Boston clinch the Eastern Conference Finals then led the second unit that helped the Celtics pull away from the Los Angeles Lakers in Game 4 of the finals."