BUENOS AIRES, ARGENTINA - OCTOBER 08: Sergio Aguero, of Argentina, grimaces in pain after being injured during a match between Argentina and Ecuador as part of FIFA 2018 World Cup Qualifier at Monumental Antonio Vespucio Liberti Stadium on October 08, 2015 in Buenos Aires, Argentina. (Photo by Daniel Jayo/LatinContent/Getty Images)

BUENOS AIRES, ARGENTINA - OCTOBER 08:  Sergio Aguero, of Argentina, grimaces in pain after being injured during a match between Argentina and Ecuador as part of FIFA 2018 World Cup Qualifier at Monumental Antonio Vespucio Liberti Stadium on October 08, 2015 in Buenos Aires, Argentina. (Photo by Daniel Jayo/LatinContent/Getty Images)