Heading into their ninth game, the Notre Dame Fighting Irish have been perfect all season and are dreaming of potentially earning a spot in the BCS National Championship.
Unfortunately for the Irish, they're running into one of college football's best quarterbacks, Landry Jones, at a time that their own No. 1 guy under center is just returning form a concussion.
For the Oklahoma Sooners, this is without a doubt their biggest game of the season.
After the Sooners' early season loss to Kansas State, Oklahoma has roared back. After handily routing No. 15 Texas two weeks ago, they generated 61 points against the Longhorns.
Obviously, beating Texas by such a wide margin was impressive, but replicating that feat against a defense as stingy as Notre Dame's will be considerably more difficult.
The Irish have suffocated opposing offenses all year and haven't allowed more than 20 points in a game in 2012.
But Jones has looked better and better as the season has progressed, as CBS Sports' Matt Rybaltowski pointed out:
Jones has been flawless during a three-game winning streak when the Sooners have averaged 52 points per game. The Sooners senior quarterback indicated earlier in the week that he will focus on remaining patient with his reads against Notre Dame's stifling defense.
After his recent performances, Jones looks more like the guy that threw for more than 3,500 yards in 2011 than he did early in the year.
In his last three games alone, Jones has passed for over 800 yards and seven touchdowns. The Fighting Irish simply haven't faced a quarterback that dynamic all season.
It's not as if he'll catch the Irish off guard, but if this game turns into a game of chicken in which each team waits for the other to blink, Jones will leave Oklahoma Memorial Stadium with a big victory.
Oklahoma's got the 12th best defense in the nation and Jones' lethal partnership with Kenny Stills will be the difference between two of college football's biggest heavyweight.