Barcelona coach Ernesto Valverde insists Real Madrid are "not invincible".
After Sunday's Supercopa defeat, Barca defender Pique conceded Real were now "superior" to the Catalans.
However, Valverde disagrees and insists: "Nobody is invincible.
"If there is a certainty in football, it is that everyone will lose one day or the other.
"It has happened to us and it will happen to Real Madrid."
Source: tribalfootball.com