Things to watch during Week 8 in the Big 12 Conference:
GAME OF THE WEEK: Texas Tech (5-2, 2-2 Big 12) at No. 17 Oklahoma (5-1, 2-1), in a game featuring quarterbacks on opposite sides who have started for the Red Raiders. Patrick Mahomes is the current starter in Lubbock, and Baker Mayfield was a freshman starter for the Red Raiders in 2013 before transferring to Oklahoma and having to sit out last season. Mahomes leads the Big 12 with 375 yards passing per game and has 20 touchdowns and six interceptions, while Mayfield is throwing for 313 yards a game with 19 TDs and three picks.