The defender did not hold back as he responded to the club's doubters after Wednesday's stunning 6-5 aggregate win.
Gerard Pique hit out at critics of Barcelona following their miraculous Champions League comeback, singling out former coaches Arrigo Sacchi and Raymond Domenech.
On the verge of elimination in the round of 16 for the first time since 2007, Barca erased a 4-0 first-leg deficit as the Spanish giants stunned Paris Saint-Germain 6-1 on Wednesday to emerge 6-5 victors on aggregate.
Former AC Milan coach Sacchi claimed Barca had lost their style and principles following the rout in Paris last month, while ex-France boss Domenech said the LaLiga titleholders were a shadow of the team that have dominated Europe as he also criticised Lionel Messi and Andres Iniesta.