Sources: Jason Terry, Celtics close to deal

Free agent guard Jason Terry is closing in on a three-year contract with the Boston Celtics, sources close to the situation confirmed Tuesday.

Terry's offer from the Celtics is believed to be for the full mid-level exception of $5 million annually.

Sources familiar with the Dallas Mavericks' thinking told ESPNDallas.com that the team, coveting financial flexibility, is unlikely to match the Celtics' offer to Terry.

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