Domonique Foxworth posted four interceptions for the Baltimore Ravens last season. ((Mitchell Layton/Getty Images))

Already ravaged with injuries to their secondary, the Baltimore Ravens lost another defensive piece after cornerback Domonique Foxworth suffered a season-ending knee injury.

The veteran tore his anterior cruciate ligament during an informal practice period on Thursday.

Ravens head coach John Harbaugh said on Friday that Foxworth suffered the injury without being touched.

Foxworth had four interceptions last season.

His injury is the latest setback for the Ravens.

Cornerbacks Fabian Washington and Lardarius Webb are recovering from injuries, while safety Ed Reed recently had hip surgery and may start the season on the physically unable to perform list.

Should Reed find himself in such a position, he would be forced to miss at least the first six weeks of the season.

With files from The Associated Press