ST. LOUIS — Shaun Hill has been here before.

A career backup quarterback, Hill is certain he will be able to successfully run the St. Louis Rams’ offense after Sam Bradford suffered a season-ending knee injury during the weekend.

“This is not anything new, it’s not anything different,” Hill said. “I keep the same mindset I’ve always had.”

Hill has been forced into an extended relief role for the second time in his 13-year career. He replaced Detroit quarterback Matthew Stafford for 10 games in 2010 when Stafford went down with a shoulder injury.

“I’ve always gone into every week as a backup as if I was going to play,” Hill said. “That’s the only way I know how to do it.”

Hill is 13-13 as a starter including a 3-7 mark in relief of Stafford.

St. Louis coach Jeff Fisher has the utmost confidence in Hill, who Fisher said looked good handling the offense in practice on Monday.

“He’s ready to go, he’s excited about this opportunity,” Fisher said.