Links: Sooners' defensive tackles shining

A few notes from SoonerNation:

Brandon Chatmon: Oklahoma's defensive tackles were supposed to be the weak link on a stellar defense. Led by junior Casey Walker, they're proving critics wrong

Bob PrzybyloInsider: Oklahoma commitments Ty Darlington and John Michael McGee have become close friends. And they’ve never even met in person.

Podcast: ESPN Dallas' Landry Locker and Jake Trotter of SoonerNation discuss Oklahoma's season.