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AMES, Iowa (AP) — Chris Callahan hit a 19-yard field goal as time expired and No. 13 Baylor rallied from 14 down in the fourth quarter to beat Iowa State 45-42 on Saturday.

Shock Linwood rushed for 237 yards for the Bears, who moved to 2-0 in the Big 12 for the fourth year in a row.

Baylor (5-0, 2-0), playing without star wide receiver KD Cannon because of a groin injury, trailed 42-28 before using scoring drives of 86 and 84 yards to tie it up.

Baylor’s defense finally stiffened in the fourth quarter and Seth Russell — who was 12 of 22 passing for 178 yards — drove Baylor 83 yards to set up Callahan’s chip shot.

“Credit to Iowa State. They punched us in the mouth several times. We were speaking on the sidelines (saying) ‘this is still our game. We’re still going to fight.’ And we did,” Russell said.

Joel Lanning threw for 261 yards and two touchdowns for Iowa State (1-4, 0-2).

Mike Warren added a season-high 130 yards rushing for the Cyclones, who scored touchdowns on their first six full possessions but were shut out after that.

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