Cox would go on to play seven more seasons in the NFL for the Chicago Bears, New York Jets, New England Patriots, and New Orleans Saints. In a career encompassing 165 games, Cox recorded 764 tackles, tallied 51.5 quarterback sacks, caught four interceptions and forced 22 fumbles. Among his most famous plays was a 27-yard interception-return touchdown against the Patriots in September 1999 while playing with the Jets; another famous play came with the Patriots in September 2001 in a game against the Indianapolis Colts; Cox hit receiver Jerome Pathon in the first quarter, a hit that briefly knocked Pathon out.