Watch: Pique takes apparent shot at Ronaldo's 'Calma' celebration

Gerard Pique continues to draw the ire of Real Madrid fans after the Barcelona defender was caught taking an apparent dig at Cristiano Ronaldo during Sunday's victory parade.

The Spanish international, who has an extensive history of mocking Real Madrid, was recorded imitating a gesture synonymous with Ronaldo when he performed what is known as the "Calma" celebration.

The apparent shot at Ronaldo triggered uncontrollable laughter on the upper deck bus as teammates Luis Suarez, Lionel Messi, and others could hardly contain themselves.

Here's Ronaldo performing the act in question during several goal celebrations against Barca: