Former Dallas Mavericks point guard Jason Terry and the Boston Celtics have agreed to a deal, according to sources. The Celtics will sign Terry to a three year deal and will be paid the full mid-level exception of $5 million a year. The signing of Terry to the Celtics will likely end the Ray Allen era in Beantown. The Miami Heat, Chicago Bulls, and Memphis Grizzlies have all made a run for Ray Allen's services. The man affectionately known as "Jet", Terry, spent the last eight seasons with the Dallas Mavericks replacing the popular Steve Nash. Terry won the NBA Sixth Man of the Year award in 2006 and an NBA title in 2011, the Mavericks' first title. A source says that Terry's decision on leaving the Mavericks had nothing to do with Deron Williams spurning the Mavs for the Brooklyn Nets. Dallas Mavericks president of basketball operations, Donnie Walsh, said of Terry's departure, "What Jet did for this city and franchise will never be forgotten. He's one of the greatest clutch performers in the history of our game and an even better person. We wish him nothing but the very best." The Mavericks are looking at bringing back Steve Nash to replace Jason Terry, but the Toronto Raptors and New York Knicks appear to be the favorites to land Steve Nash.