Sam Pittman will be without one of his key offensive players going into Week 2.

The Arkansas head coach confirmed on his weekly radio show that preseason second-team Associated Press All-American tailback Rocket Sanders will be out at least 1 game and possible a couple more with a left knee injury.

The 6-foot-2, 242-pound Sanders sustained swelling after Arkansas’ 56-13 season-opening victory vs. Western Carolina. The junior finished with 42 rushing yards including 2 touchdowns.

“So Rocket has an injury that it’s going to take a couple of weeks for him to heal. But that’s the length of it. Maybe two, maybe three weeks,” Pittman said .” So he won’t be able to play this Saturday and possibly next Saturday. We’re not positive about that. But it’s not going to linger any further than maybe a couple games.”

The electric Sanders rushed for 1,443 yards and 7 touchdowns last season en route to earning First-team All-SEC honors.

Arkansas will host Kent State in Week 2 on Sept. 9 (4 p.m. EST/SEC Network). This is the first matchup between the programs.