Sitting eight points clear, Marca says Pique couldn't help himself and started taunting Real players inside the tunnel.
"Eight points, eight points! We have won your Spanish title," mocked Pique. "You have given it to us!
"And now, we are going to win the Copa of your King!"
Pique's taunts sparked fury from Real players and staff, with the likes of Iker Casillas, Emmanuel Adebayor and Sergio Ramos all trying to get at the former Manchester United defender. But a fence which separates the two teams prevented a physical confrontation.