Arizona State starting quarterback Sam Leavitt will miss Saturday’s game in Cincinnati and possibly more time due to a rib injury.

Jeff Sims, a former starter at both Nebraska and Georgia Tech who competed with Leavitt for ASU’s starting job, will lead the charge on Saturday. Coach Kenny Dillingham has no set timetable for Leavitt’s return, saying, “It could be two weeks, it could be four weeks.” Arizona State has an open week after Cincinnati before visiting Oklahoma State on November 2.

Leavitt said after Friday’s win against Utah that he took a hit to the ribs, which “started cramping and (I) couldn’t really breathe.” But he stayed in the game as ASU won 27-19 and had 154 passing yards with a touchdown and an interception. Sims had his first two passing attempts for ASU in the Utah game and also has a rushing touchdown this season.

The 6-foot-1, 215-pound Sims started 23 games for Georgia Tech and the first two games last season at Nebraska. He has 4,759 career passing yards with 31 touchdowns and 29 interceptions, as well as 1,372 career rushing yards and 12 scores. Dillingham has said that both Leavitt and Sims are “NFL Sunday talents.”

“We brought him in to compete in the start,” Dillingham said. “Sam is a really good player. Sam beat him, but it was close. Jeff had a good camp. And now Jeff, who has started a lot of games, gets to start again. For me, there’s not a lot of drama.”