The Colts signed free-agent OL Jake Kirkpatrick and QB Trevor Vittatoe on Thursday.
Kirkpatrick was originally signed by the Colts as an undrafted free agent last July and was released prior to the regular season. He won the Rimington Trophy in his senior year at TCU, which is awarded to the nation's top center.
Vittatoe originally signed with the Bears as an undrafted rookie free agent on July 26, 2011. He was released prior to the regular season. Vittatoe was a four-year starter at UTEP.