8/28 17:23: According to Jim Bowden of FOXSports, he tweets, “Dan Uggla just told us that his negotiations are going really slow with the Marlins and so he doesn’t know what’s going to happen”

8/24 11:32: Major League sources close to Ken Rosenthal of FOXSports says that Florida Marlins second baseman, Dan Uggla, wants a five-year contract extension in the $55-60 million range.

We heard earlier this month that the Marlins and Uggla’s camp have been discussing a contract extension for some time, but at the time the sides were far apart. The Marlins were said to be in the three-year, $30 million range.

Uggla currently is making $7.8 million. He will be in the final year for salary arbitration for 2011, and could expect a one-year salary around $10 million. He can be a free agent starting in 2012.

Teams tend to negotiate contract extensions for star players before their arbitration eligibility runs out. In exchange for the long-term security, players will sign contracts slightly below open-market value and giving up their final years of arbitration eligibility and beginning years of free agency.

Uggla, 30, is in the middle of his best season in his short career. He’s hitting .288/.375/.519 with 28 home runs and 79 RBIs.