The season is about to get serious for No. 4 Oklahoma and the Big 12.

The Sooners come off a open date to play the first of what could be their four toughest games of the season. They visit No. 18 Baylor, which is coming off an upset loss but is still in the Big 12 hunt, in one of four games Saturday matching ranked teams.

After that, Caleb Williams and the Sooners head to Iowa State. The Cyclones are also still hanging in the Big 12 race, but like the Baylor, can't afford another loss.

The season finale is the annual Bedlam showdown at No. 10 Oklahoma State, which is sitting by itself in seco...