Wilson spent the previous four seasons with the Miami Dolphins, tallying 133 solo tackles, 16 passes defensed, four interceptions and three forced fumbles in 60 games. The 28-year-old adds depth to a Chargers unit that features Flowers and young standout Jason Verrett at the cornerback positions, and three-time Pro Bowl safety Eric Weddle. Wilson will be in the mix to start at strong safety with incumbent starter Marcus Gilchrist about to join the New York Jets.