The CFP rankings received significant shakeup after a string of upsets this past weekend in college football. One of those was Alabama football losing to unranked Oklahoma, who had not defeated an FBS team since September.

Former college football head coach and football analyst Nick Saban warns Southeastern Conference teams about cold weather ahead of CFP.

"Because (of) their win over Georgia," CFP selection chair Warde Manuel said. "They won against Missouri. They've beat South Carolina and they won at LSU in a dominant fashion. So when you put those four wins against, you know, Mississippi and what they did ... when we compare resumes, that's how we saw it."