Damontre Harris, the sophomore expected to take over as South Carolina's dominant post player this season, suffered an undisclosed right foot injury during a conditioning session on Friday.
The 6-foot-9 Fayetteville, N.C., native will be sidelined until at least next week when the team medical staff will examine it again.
Harris had surgery this summer to remove screws in his left knee left after a high school injury. The screws began to irritate him under the physical stress of his first season of college ball.
He appeared in 29 games last season, starting 19. He averaged 3.7 points and 3.6 rebounds a game while playing 17 minutes per contest.
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Harris is expected to take the bag man role over for Sam Muldrow, who graduated last season after becoming the school's all-time leading shot blocker. Muldrow averaged 11.4 points and 7.3 rebounds a game in 2010-11.
Harris' injury is not the only one for USC, which has just 10 scholarship players after a 14-16 campaign last season. Full practices begin in two weeks on Oct. 14.
The Gamecocks' only two upperclassmen are recovering from foot and ankle problems this summer.
Senior forward Malik Cooke dislocated his right ankle in a pickup game in June.
The 6-foot-6 Charlotte native is working out with the team but is still getting treatment. His status for the beginning of practice and the season, which starts Nov. 3 with an exhibition against Kentucky Wesleyan, should become more clear after a follow-up with team doctors next week.
Cooke averaged 9.4 points and a team second-best 6.4 rebounds a game last year. He is expected to be a starter this season after coming off the bench during much of last season's SEC schedule.
Junior forward Lakeem Jackson had surgery on his left foot, which bothered him late last season and forced him to miss his first games at USC. The 6-foot-5 Charlotte native was a starter in his first two seasons before his injury.
Jackson is working out with the team and expects to be ready when full practices start, though he is not 100 percent. He averaged 7.8 points and 5.6 rebounds a game last season.
The Gamecocks lost the full-time help of four players at the end of last season. Guard Ramon Galloway and forward Murphy Holloway transferred. Guard Stephen Spinella left the team.
Last year's leading scorer, point guard Bruce Ellington. decided to play football, though he plans to return to the basketball team as early as the end of the regular season.
This week, USC added two walk-ons, juniors Shane Philips and Alex Irwin. They are expected to help at practice and not dress for games, but head coach Darrin Horn said earlier this week he would not make a final decision until formal workouts start.