OU-Tennessee, Josh Heupel, Brent Venables, CFP hopes. All on the line.

OU heads to Tennessee for a special "Dark Mode" night game. It's special because both teams and both fan bases are on the edge. On the edge of the playoff conversation, on the edge of sinking, on the edge of swimming. OU's offense faces a team that hasn't played a lot of defense. Josh Heupel's offense is humming and OU's defense is coming off their toughest outing of the year against Ole Miss. Can John Mateer get the offense out of a funk. And can he get himself out of one as well. It will be a wild atmosphere. It's the centerpiece of ESPN/ABCs national coverage Saturday night. Brent Hubbs from VolQuest joins us to break things down from The Volunteers' side of things. And we bring you the latest inside practice from the offense and the defense. Punches are going to be thrown. Who will respond the best when they get knocked down? It's OU-UT in Knoxville. And it's another Gameday Preview! Learn more about your ad choices. Visit megaphone.fm/adchoices