The San Diego Chargers have a lot of question marks at cornerback this season. They added another Friday.
Rapoport: Charged by change
Like any veteran signing at this stage of the offseason, picking up Marshall is a shot in the dark. The Dolphins needed cornerback play, and he didn't last with them. Free-agent pickup Derek Cox is San Diego's top cornerback, with Shareece Wright and Johnny Patrick next up. In short: Peyton Manning is going to enjoy facing the Chargers this season.