Peterson, who was injured in last weekend's loss to Texas A&M, will undergo season-ending knee surgery in the next couple of weeks, Miles said. An MRI on Monday revealed that Patterson had torn the anterior cruciate ligament in his knee.
The 6-foot-2, 250-pound defensive end led the team with four quarterback sacks.
Junior Jerry Don Bray, who began the season as the starter, will replace Peterson in the starting line-up.
Williams, the All-American cornerback and outstanding punt returner, is still nursing a broken forearm. He broke the arm in the Cowboys' win over Iowa State and has missed the last two games. The Cowboys were hoping to have him back for this weekend's game in Columbia, Mo., but Miles said Tuesday night on his radio show that Williams would not be available.
Junior Daniel McLemore has started in place of Williams against Colorado and Texas A&M.
Peterson, Williams Out<br>Against Missouri
GoPokes Top Stories
Depsite the Hype, It's Business as Usual"I mean, if you see us before games, we aren't there tweeting or talking trash online. I mean, it's just how Coach Gundy wants the program ran, and that's how we execute it."
GoPokesYesterday at 3:45 PM
After Media Days, Big 12 Looks the SameIs the Big 12 really the weakest of the Power Five conferences? Who is going to win the Big 12? Which teams are competing for the top? My answers to those questions haven't changed…
GoPokesWednesday at 8:10 PM
Summer Workouts led by Seniors and Title RunThis summer for the Cowboys have been harder than many can remember, and it's been led by the seniors.
GoPokesWednesday at 3:45 PM
Holgorsen Admits Physical Play Learned at OSUYou don't think West Virginia is a real threat this season in the Big 12? You might want to reconsider because Dana Holgorsen has a chance to have a really balanced offense and…
GoPokesWednesday at 9:26 AM