By Ryan Aber, Staff Writer, raber@oklahoman.comNORMAN — Oklahoma's offense has been historic this season, so it's no surprise that several underclassmen are candidates to leave college early to pursue a professional career. Injured running back Rodney Anderson has already declared for the NFL Draft. Here's a look at four other players who could make such a move, starting with the most obvious: Kyler Murray, quarterback Chances he leaves: Almost a sure thing.Read more on NewsOK.com