Defense, special teams shine as Oklahoma defeats Tennessee 33-27.
Mateer, Sandell, and the Sooners' defense deliver key plays to hold off Vols in SEC road battle.
Oklahoma secures its first win in Knoxville since 2015.
The Sooners led 16-10 at halftime behind a 71-yard fumble return touchdown.
Author's summary: Sooners win 33-27 against Volunteers.