(Reuters) - Three-time Vuelta winner Alberto Contador expects Colombian rider Nairo Quintana to win his first Tour of Spain in Madrid on Sunday. Movistar Team rider Quintana holds an advantage of three minutes and 37 seconds over nearest rival, Tour de France winner Chris Froome with five stages remaining, including Friday's individual time trial. "Unless Quintana has a bad day, he is the winner of La Vuelta," Contador told Spanish radio Cadena Ser. More...