NORMAN, Oklahoma – University of Oklahoma starting weak side linebacker Travis Lewis will miss the next eight weeks after breaking a bone in his left foot during Monday's practice.

Wednesday head coach Bob Stoops said Lewis fractured the sesamoid bone in his big toe of his left foot. Stoops also said the injury occurred while Lewis was participating in the Oklahoma drill.

"We're disappointed for Travis," said OU head coach Bob Stoops. "He has worked very hard and I know he'll want to get back as quickly as possible.

Coach Stoops says Corey Nelson will replace Lewis at weak side linebacker and that Tony Jefferson will work at the nickel back giving that Javon Harris increased time at the safety position.

"We'll adapt in the meantime," said Stoops. " We've recruited very well and have some excellent athletes in those positions. I'm confident that those players will perform well."

OU Head Athletic Trainer Scott Anderson said the injury does not require surgery. The treatment consists of rest and immobilization according to Anderson.

The Sooners will definitely miss Lewis on the field, especially for OU's top-five matchup against the Florida State Seminoles on September 17 in Tallahassee.

Lewis, a senior from San Antonio, Texas, has 362 tackles through his first three seasons at Oklahoma along with eight interceptions and six sacks.

Nelson, a sophomore from Dallas, played in all 14 games last season accumulating 21 tackles.

Oklahoma opens the season Sept. 3 against the University of Tulsa at 7 p.m.