IRVING, Texas — Jon Kitna will earn $53,000 to serve as the Cowboys’ third-string quarterback for one week — and he plans to donate that money to the Seattle-area high school where he’s now a coach.

Kitna retired after the 2011 season, his 15th in the league, and was coaching football at Lincoln High School in Tacoma, Wash., this season when he heard about Tony Romo’s back injury. Kitna sent a text message Tuesday morning to Cowboys coach Jason Garrett, and the two would talk by phone for 30 minutes, he said.

“I told Jason if he wants me or somebody to come in and call a play and be able to pull a play off if a bad situation happened, I would be willing to do that,” the 41-year-old Kitna said.