COLUMBIA -- South Carolina isn't planning on having strong safety DeVonte Holloman for Saturday's home game against Florida, according to defensive coordinator Ellis Johnson. Holloman suffered a concussion last Saturday at Arkansas.

Holloman almost certainly will not play against the Gators "because he didn't practice (all week), and even if they cleared him now, I'd probably be concerned about him playing without any practice time," Johnson said. "Whether he'll be dressed and available for an emergency or something, I guess that'd be up to the doctors."

That means freshman Brison Williams will step in and make his first career start, after practicing with the first team all week. Johnson feels uneasy about Williams' lack of experience (four games played) as he prepares to start such a big game.

"He's not DeVonte," Johnson said. "And I don't think he's nearly as sure of himself and in-tune with all of our schemes and checks. But if there is a nice thing about having a player out all week, it's the other guy getting all the reps. Certainly, that's got to help him."

Three other starters nursing injuries are expected to play against Florida: quarterback Connor Shaw (concussion), free safety D.J. Swearinger (sprained foot) and spur linebacker Antonio Allen (strained neck).

Shaw was knocked out of the Arkansas game, while Allen, the team's leading tackler, didn't play at all. Those three players were limited in practice this week, to one degree or another.