The 49ers likely are off the list of possible suitors for Dolphins running back Ricky Williams. San Francisco coach Mike Nolan, head coach for the South team at the Senior Bowl, said Thursday he didn't think his team would be particularly interested. ''Look, if the price is right, I'd have to say that I'm interested in everybody,'' Nolan said. ``But we're pretty strong at running back.'' The 49ers have Kevan Barlow and former University of Miami standout Frank Gore as their top two running backs.