ALAMEDA -- The transformation of David Ausberry from wide receiver to tight end is more than a mental switch for the second-year pass catcher from USC.

It's a physical thing, too, literally, as observed by the 20 pounds of muscle Ausberry has put on since the Raiders used a seventh-round draft pick on him last year. Standing six-foot-four, he now weighs 265 pounds but has not lost his nimble feet or soft hands that served him well when he lined up on the outside.

read more: Ausberry's move to TE a physical transformation