FORT WORTH, Texas (AP) - Seth Doege and Texas Tech backed up their big victory - even though it took a while.

Now, the 15th-ranked Red Raiders have to get ready for another big challenge after a 56-53 triple-overtime victory at TCU.

Tech plays Saturday at Big 12-leading Kansas State.

After winning by five touchdowns a week earlier over then-No. 5 West Virginia, Texas Tech (6-1, 3-1 Big 12) overcame an early 10-point deficit, and Doege threw TD passes in each overtime period.

The Red Raiders let a 10-point lead get away in the final 2 1/2 minutes of regulation.

Doege says the Red Raiders had been preaching all week ``to take it to the next level.''

They lost five in a row after upsetting third-ranked Oklahoma midway through last season.