BUENOS AIRES, ARGENTINA - MAY 14: Leonel Vangioni of River Plate reacts after a tear gas bomb was thrown by fans of Boca Juniors during a second leg match between Boca Juniors and River Plate as part of round of sixteen of Copa Bridgestone Libertadores 2015 at Alberto J. Armando Stadium on May 14, 2015 in Buenos Aires, Argentina. (Photo by Gabriel Rossi/LatinContent via Getty Images)
