The Dodgers are negotiating a long-term contract extension with General Manager Ned Colletti, a high-ranking club official said. The Dodgers have reached the postseason three times in four years under Colletti, whose current deal includes a mutual option for 2010. Colletti, who said earlier this month he would "love" to return to the Dodgers next season, declined to comment on the negotiations. "He's obviously done a very good job," Frank McCourt said. "The team has the best record in the National League. We're on the verge of clinching the division back-to-back [for the first time] in 31 years. I think that speaks for itself."