Patriots' signing of CB Derek Cox sparks memories of solid Bill Belichick trade

FOXBOROUGH, Mass. -- The New England Patriots announced the signing of veteran cornerback Derek Cox on Monday, a move that sparks memories of one of the best trades of Bill Belichick's 16-year tenure.

In 2009, the Patriots traded a third-round pick to the Jaguars, who selected Cox. In turn, the Patriots received a seventh-round draft pick (WR Julian Edelman) and a 2010 second-rounder that was in a position (No. 44) that allowed the club to jump to No. 42 to select tight end Rob Gronkowski.

So if the 6-foot-1, 195-pound Cox surprises and makes the Patriots' 2015 roster, the team will end up with all three players from that transaction.

The 28-year-old Cox has played for the Jaguars (2009-2012) and Chargers (2013), appearing in 63 games (56 starts) and totaling 13 interceptions. In 2014, he spent from March 16 to Aug. 25 with the Vikings, then had a four-day stint with the Ravens from Aug. 27 to Aug. 30. He wasn't with a team in the 2014 regular season.

Cox adds depth at cornerback, where Super Bowl hero Malcolm Butler hasn't been practicing in voluntary organized team activities. He fills the final spot on the 90-man roster, which was created by the release of linebacker Brandon Spikes earlier Monday.