Central Florida looks to get its offense in high gear when it opens American Athletic Conference play at Houston on Thursday. The Knights, who rank 117th out of 125 FBS teams in yards per contest, have struggled on the ground while introducing a first-year starter at quarterback. Central Florida must find a way into the end zone against Houston, which is averaging 31.5 points with a rushing attack that produces more than five yards per carry and put up 399 against UNLV last time out.

Two of the final three undefeated Pac-12 teams meet Thursday as Arizona visits fourth-ranked Oregon, which is looking to avenge last season’s 42-16 loss. Oregon quarterback Marcus Mariota, who threw two interceptions in last season’s defeat, sits atop the Heisman Trophy race with 13 touchdowns and no interceptions while completing 74 percent of his passes through four games. Mariota should thrive against the Pac-12’s second-worst passing efficiency defense.