COLUMBIA, S.C. - Freshman Lorenzo Nunez's shoulder injury has led to the latest quarterback switch for South Carolina and coach Steve Spurrier.

Spurrier said Thursday former walk-on Perry Orth will start against No. 7 LSU on Saturday because Nunez had not practiced much this week after injuring his shoulder at Missouri.

Orth, a junior, started at Georgia three weeks ago in a 52-20 loss. Nunez took over the following week and also started in a loss at Missouri.

Connor Mitch, who began the season as the starter, remains out with a separated shoulder he sustained in a loss to Kentucky last month.

The Gamecocks (2-3, 0-3 Southeastern Conference) had their home game with LSU (4-0, 2-0) shifted to Louisiana because of flooding in South Carolina.