NOTRE DAME -

Two football powerhouses will collide Saturday.

The Oklahoma Sooners will play the Notre Dame Fighting Irish in South Bend in one of the biggest games of the season for both teams. Fans from all over the country were in town for the matchup.

Nick Nicholson flew in from Houston on Thursday to cheer on his alma mater, the University of Oklahoma. Tomorrow's game is a significant one, but that's nothing new to either team, Nicholson said.

"That's the nice thing about the University of Notre Dame and the University of Oklahoma: both of them know how to win," he said. "They're used to being under the spotlight like this."

Notre Dame fan Bob Hammaker traveled from Pennsylvania to watch the game with his friends, a group of Oklahoma fans. Hammaker said he wasn't entire confident in an Irish victory.

"Worried? No. Concerned? Yeah," Hammaker said. "I'll let you know at halftime," he joked.

But Joe Martin from Ohio is staying optimistic.

"Oklahoma's been down a little. They're not what they used to be," Martin said. "It's going to be close. It all depends on if the defense steps up."

Fans from both teams reflected on the tradition of the OU-Notre Dame matchup. Both schools have a long history of college football glory, and that's what makes tomorrow's game so special, said Larry Foresee, a Sooners fan from Dallas.

"When you look at the two teams, all the history behind them both, all the champions, the All-Americans, the fan bases, I think it's going to be really exciting," Foresee said.

Kickoff is around 3:30 p.m. ET. The Sooners are ranked No. 14 and the Irish No. 22 in the AP poll.