Oklahoma football notebook: Lane Johnson, Bronson Irwin provide latest O-line scares - Article Photos 21/47

A pass intended for Oklahoma's Jalen Saunders (18) in the end zone falls incomplete as Iowa State's Deon Broomfield (26) defends in the third quarter during a college football game between the University of Oklahoma (OU) and Iowa State University (ISU) at Jack Trice Stadium in Ames, Iowa, Saturday, Nov. 3, 2012. OU won, 35-20. Photo by Nate Billings, The Oklahoman