Jeff Mayweather not impressed with Robert Guerrero

By Dan Ambrose: Floyd Mayweather Jr's uncle Jeff Mayweather doesn't see anything special in WBC interim welterweight champion Robert "The Ghost" Guerrero (31-1-1, 18 KO's) and he thinks the 29-year-old Guerrero is going to have major problems against Mayweather Jr. on May 4th in their Las Vegas, Nevada-based fight on Showtime. Mayweather is sparring with