Bennett leads the fifth-ranked Bulldogs with 24 catches for 345 yards and four touchdowns. The sophomore from Alpharetta, Ga., will undergo reconstructive knee surgery at an undetermined date, Georgia director of sports medicine Ron Courson said Wednesday in a university news release.
Addressing reporters Tuesday morning, Georgia coach Mark Richt had discussed the Bulldogs' good fortune up to that point regarding injuries.
"We have been very healthy," Richt said. "We have been blessed without question. Going into the season, we were pretty healthy. Now we are probably healthier at game six than we were when we started the season. So that is a good thing."
Bennett -- seventh in the SEC with 69 receiving yards per game -- plays one of the Bulldogs' deeper positions, with Marlon Brown and Tavarres King also ranking among the league leaders. Brown (17 catches, 272 yards) is eighth in the league with an average of 68 receiving yards per game and King (16-307, 61.4 ypg) is 10th.
Richt also announced Tuesday that Malcolm Mitchell will play predominantly on offense for Saturday's SEC East showdown with No. 6 South Carolina. A two-way standout, Mitchell had spent most of his time on defense leading up to last Saturday's win against Tennessee.
"He's primarily an offensive player, and he's in a state of readiness on defense," Richt said.
DawgNation's David Ching contributed to this report.