Is Mathews still Chargers' workhorse?

It took four seasons, but Ryan Mathews finally stayed healthy and came through with an impressive campaign for the San Diego Chargers in 2013. He ended up playing a full 16-game slate and totaled 1,444 yards and seven touchdowns. The Chargers also got 1,034 combined yards out of RB Danny Woodhead, primarily as a pass-catcher, and they added Donald Brown to the mix this offseason.