River Plate's defender Emanuel Mammana (R) heads the  ball with past Boca Juniors' midfielder Rodrigo Bentancur (C) and defender Leonardo Jara during their Argentina First Division football match at the Monumental stadium, in Buenos Aires, on March 6, 2016. AFP PHOTO / ALEJANDRO PAGNI / AFP / ALEJANDRO PAGNI        (Photo credit should read ALEJANDRO PAGNI/AFP/Getty Images)