Quique Setien endured his first annihilation as Barcelona supervisor as Valencia asserted their first home success over the Spanish bosses since 2007.
The hosts broke the gridlock when Jordi Alba redirected Maxi Gomez’s amazing strike past Marc-Andre ter Stegen.
Gomez, who had a first-half punishment spared by Ter Stegen, finished the scoring in the subsequent half.
There were obnoxious scenes before the game as adversary fans conflicted outside the Mestalla Stadium.
Setien had delighted in a decent beginning to his Barca rule, directing the club to triumphs over Granada in La Liga and UD Ibiza in the Copa del Rey round of 32.
The guests rushed to increase a stranglehold on ownership yet were nearly non-existent as an assaulting power in the principal half, with Valencia getting a charge out of the better of the early possibilities.
Los Che were talented a brilliant chance to lead the pack when Gerard Pique felled Gomez inside the punishment territory, yet the Uruguayan’s spot-kick was magnificently palmed to security by Ter Stegen.
The previous Borussia Monchengladbach goalkeeper must be on his toes minutes after the fact to repel another Gomez exertion on to the woodwork, before tipping Kevin Gameiro’s follow-up past the post at full stretch.
Barcelona began the second half with more prominent reason and Ansu Fati nearly designed an opening in the wake of joining great with Lionel Messi, yet the young person could just jab his shot wide of Jaume Domenech’s correct hand post.
Messi seemed anxious to bring matters into his own hands as the subsequent half advanced, hauling a furious low exertion wide of the far post before taking askew from Antoine Griezmann’s conveyance.
Gomez finished the guests’ expectations of a late recovery with 13 minutes staying, twisting into the furthest corner after Ferran Torres had separated clear the conservative.
Previous Arsenal protector Gabriel Paulista thought he had made it 3-0 late on, however the Brazilian’s volley was prohibited for an encroachment inside the Barcelona box.
Second-put Real Madrid can move three focuses away from Barcelona at the highest point of La Liga on the off chance that they dominate their match close by at Real Valladolid on Sunday.