Argentine referee Silvio Trucco holds a sandal thrown by a supporter of Boca Juniors, next to River Plate's defender Leonel Vangioni during the Sudamericana Cup semifinal first leg football match at the Bombonera stadium in Buenos Aires, Argentina, on November 20, 2014. AFP PHOTO / Juan Mabromata        (Photo credit should read JUAN MABROMATA/AFP/Getty Images)