Argentina's River Plate footballers leave the pitch under police shields after the match was suspended when Boca Juniors' fans pepper sprayed River Plate players before the start of the second half of the Copa Libertadores 2015 second leg football match against Argentina's Boca Juniors at the "Bombonera" stadium in Buenos Aires, Argentina, on May 15, 2015. AFP PHOTO / JUAN MABROMATA (Photo credit should read JUAN MABROMATA/AFP via Getty Images)
