Oklahoma football: Bob Stoops says Marshall Musil's torn ACL came during punt cover drill - Article Photos 77/77

Kansas State University running back Darren Sproles (43) leaves University of Oklahoma (OU) defenders in his wake as he runs the ball setting up KSU's first touchdown in the second quarter of the Big 12 college football championship Saturday, Dec. 6, 2003 at Arrowhead Stadium in Kansas City, Mo. (AP Photo/Charlie Riedel)