NFL free agency 2013: Chargers sign Derek Cox

As the Buccaneers work on getting Darrelle Revis to Tampa, the free agent cornerbacks are starting to come off the market. The San Diego Chargers have signed cornerback Derek Cox to a four-year, $20 million deal, per Mike Gehlke of the San Diego Union Tribune.

The Buccaneers were reportedly interested in the talented but injury-prone cornerback, but will have to look elsewhere if they fail to land Revis. One other possibility is off the market too, as Dominique Rodgers-Cromartie signed a one-year deal with the Denver Broncos. The inconsistent young corner likely lacked the physicality the Bucs crave. Sean Smith is now the top cornerback still available.