Celtics close to adding Jason Terry

If Celtics president of basketball operations Danny Ainge left any question about his desire to compete for a title next season, he eliminated such uncertainty Tuesday when the team agreed to terms on a three-year contract with veteran sharpshooter Jason Terry, according to an NBA source.

Terry, 34, played the past eight seasons with the Dallas Mavericks, establishing himself as one of the game’s top sixth men. He averaged 15.1 points this season in 31.7 minutes per game, shooting 37.8 percent from 3-point range.

When asked if he will sign with the Celtics, Terry responded “strong possibility” via text message.

Terry, who officially can sign a contract July 11, will sign for the full mid-level exception that begins at $5 million per season. The Mavericks, according to the source, offered Terry more money per season to return but only a two-year deal.

– Reported by Gary Washburn of the Boston Globe