Article Photos: Oklahoma football: A look at what went into Aaron Colvin's decision to stick around for his senior season 24/62

Linebacker Frank Shannon poses for photographs for the team's photographers during photo day for the University of Oklahoma Sooner (OU) football team in Gaylord Family-Oklahoma Memorial Stadium in Norman, Okla., on Saturday, Aug. 3, 2013. Photo by Steve Sisney, The Oklahoman