The 6-foot-6, 290-pound center, known more for his size than his ability while with the Gators, was expected to see time as a backup at center for senior Bonell Colas.
Several Gators said Donovan plans on returning to the fast-paced press which put Florida's defense on the map in 2000. Boggan's size may not be the appropriate fit for such a plan.
"We have the player personnel to have a tireless defense," Colas said Thursday. "Last year, we didn't have the players we really wanted to run that sort of press. Now, Coach is really stressing that style."
Boggan played in 16 games last season, averaging 2.3 points and 1.9 rebounds per game. Before last season, Boggan shed almost 30 pounds from his high school days.
"But that's like throwing a lawn chair off the Titanic," Donovan said at the time.
Donovan released this statement Friday:
"We wish Mario nothing but the best and hope his decision to leave will help bring him closer to all of his personal goals," said Donovan. "I enjoyed having the opportunity to coach Mario and wish him nothing but the best in the future."