Oklahoma State football: J.W. Walsh's performance pushes Clint Chelf to the side - Article Photos 6/7

Oklahoma State's Caleb Lavey (45) and Shaun Lewis (11) bring down Mississippi State's Tyler Russell (17) during first half of the AdvoCare Texas Kickoff college football game between the Oklahoma State University Cowboys (OSU) and the Mississippi State University Bulldogs (MSU) at Reliant Stadium in Houston, Saturday, Aug. 31, 2013. Photo by Sarah Phipps, The Oklahoman