In this edition of the SoonersXtra podcast presented by Zaxby's, The Oklahoman's Ryan Aber and Joe Mussatto break down Oklahoma's defense through four games. They discuss the safety competition and how Alex Grinch is using Kenneth Murray in different ways.
Subscribe to SoonersXtra on Apple Podcasts, or listen to the latest episode here.
![Oklahoma's Delarrin Turner-Yell (32) and Kenneth Murray (9) celebrate during a college football game between the University of Oklahoma Sooners (OU) and Texas Tech University at Gaylord Family-Oklahoma Memorial Stadium in Norman, Okla., Saturday, Sept. 28, 2019. Oklahoma won 55-16. [Bryan Terry/The Oklahoman]](http://cdn2.newsok.biz/cache/large960_blur-1b9cec87072818a3f612c18e398c216e.jpg)
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