College football Week 6 -- Surprising unbeatens and key QB battles - ESPN

If you were asked in August to pick five teams that would be undefeated at this point, you'd probably be quick to name the traditional powerhouses: Georgia, Ohio State, Michigan, USC, Alabama. And you'd be wrong on Alabama. But you get the point.

Who in the world thought Louisville, Maryland, Kentucky, Missouri and Washington State all would be unbeaten now? Sure, maybe one or two because of the early-season schedule. But not all the wins were expected — who thought Kentucky would wallop Florida?

Those teams put their perfect records on the line in Week 6, which features the biggest battle of 5-0 teams with No. 12 Oklahoma facing No. 3 Texas in Saturday's Red River Rivalry.

Our reporters preview Week 6 with a look at the surprising undefeated teams and quarterback matchups to watch, plus some of the week's best quotes.

Louisville: When Louisville hired native son Jeff Brohm, you could feel the excitement build not only among the fan base but among the football program. He then overhauled the roster and brought in several key transfers who have paid off in big ways, starting with quarterback Jack Plummer, who played for him at Purdue. Plummer ranks No. 3 in the ACC in passing, no surprise considering Brohm's background and history, and transfer Jamari Thrash ranks No. 2 in the league in receiving. Perhaps the biggest revelation has been the Cardinals' rushing offense behind Jawhar Jordan, who leads the league with 510 yards and six touchdowns. Defensively, transfers Devin Neal (Baylor) and Cam'Ron Kelly (UNC), tied for second on the team with 24 tackles, have been big additions, too. But returner Ashton Gillotte has taken the next step with five sacks.

Brohm described his team's 13-10 win over NC State last week as his