Injury news on several Colts

Posted by ESPN.com's Paul Kuharsky

The Colts just sent out a release packed with injury news. Here it is:

The Indianapolis Colts have signed veteran free agent defensive end Josh Thomas and have placed defensive back Marlin Jackson on injured reserve. Wide receiver Anthony Gonzalez underwent arthroscopic right knee surgery yesterday to clean out loose particles, and safety Bob Sanders visited with Dr. James Andrews yesterday to gather additional information on the left elbow injury he suffered last Sunday against San Francisco, the club announced today.

Jackson suffered the left knee injury during a non-contact drill early in Wednesday’s practice. He is out for the remainder of the season. Gonzalez suffered a recent setback in practice that led to yesterday’s procedure. A timetable for his return is not determined.

Thomas played 2004-08 with the club, starting 12 of 68 appearances. He totaled 172 tackles and six sacks. He had a brief stint with the club this past training camp.