Stevie Johnson’s workout goal: A body like Megatron’s

When Bills receiver Stevie Johnson looks at Lions receiver Calvin Johnson, he likes what he sees. In fact, Stevie Johnson’s personal trainer, Travelle Gaines, says that their offseason workouts are designed to make Stevie a bigger, stronger more physically imposing receiver, along the lines of Megatron. “Stevie came to me and said, ‘I want to…