The Ravens surrendered a 40-yard punt return to Browns wide receiver Travis Benjamin last week. They'll need to shore up those issues against Chiefs punt returner Javier Arenas. He's averaging 13.3 yards per punt return to rank seventh overall. Arenas has a long return of 24 yards, consistently establishing better field position for his team. The Ravens have upgraded their special teams, led by three tackles apiece for Brendon Ayanbadejo, Corey Graham and Chykie Brown. They're giving up 11.8 yards per punt return, numbers skewed a bit by Benjamin's long return.