The St. Louis Rams have signed Kyle Boller to be the backup to starting quarterback Marc Bulger.
The 27-year-old Boller spent all of last season, his sixth with the Baltimore Ravens, on injured reserve with a shoulder injury sustained in the preseason.
He was Baltimore's first-round pick in the 2003 draft.
Boller is 10 years younger than Gus Frerotte, who the player the Rams had been negotiating with to return as a backup. Frerotte was released with a year to go on a three-year contract before last season, then went 8-3 as the starter with Minnesota.