College football Week 4 - Florida-Tennessee, Clemson-Wake Forest highlight the biggest games

College football's last weekend in September is officially here, meaning conference rivalries move to the forefront of Saturday's slate.

Sure, we'll miss the nonconference battles like Appalachian State upsetting Texas A&M in College Station or Georgia proving why the title still runs through Athens, but conference play is where seasons are defined.

Saturday's schedule kicks off with some historic matchups and newfound rivalries. Wake Forest welcomes Clemson to town in what should be a litmus test for the program while Ohio State hosts Wisconsin in an age-old rivalry that has been a little one-sided of late.

Speaking of recent lopsided rivalries, Florida travels to Tennessee, where the Vols are favored despite their ineptitude in the SEC East clash over the past couple of decades. Arkansas and Texas A&M meet in the Southwest Classic, where the Hogs erased a nine-year losing streak last year and, while it isn't a conference game, Kansas and Duke play in a battle of unbeatens — yes, you read that right.

With October around the corner and the season heating up while the temperatures cool down, these are college football's top storylines this weekend.

No. 5 Clemson Tigers at No. 21 Wake Forest Demon Deacons (Saturday, noon ET, ABC/ESPN app)

A week ago, Liberty's Dennis Osagiede raised eyebrows by calling the Wake Forest offense «cute.» Get pressure on Sam Hartman, he surmised, and the Deacons were vulnerable.

Turns out, he was right.

Of course, suggesting a QB under pressure performs worse than one who's not isn't exactly breaking news, but the key to Liberty's near-upset was the Flames' ability to disrupt the Wake backfield. The Deacons all but abandoned their run game, and Hartman had an up-and-down day. Through three