NORMAN, Okla. -- Oklahoma linebacker Austin Box underwent arthroscopic knee surgery Tuesday to repair torn cartilage in his left knee.

OU head coach Bob Stoops said that the anticipated recovery time is three weeks. Stoops called Box "doubtful" for the season opener against Tennessee-Chattanooga, but "probable" for game two against Cincinnati.
 
The Sooners continue preseason practice on Wednesday with two sessions scheduled for 9 a.m. and 6 p.m. Please visit 2008 Preseason Central for complete coverage of Sooner football.
 
Austin Box's bio is online here. Box is a redshirt-freshman linebacker from Enid, Okla.