Barcelona stumbled and lost 2-0 in the Mestalla stadium, the stronghold of Valencia, for the first time in 13 years in the Spanish League competition, a result that gives Real Madrid an opportunity to take the lead.

Barcelona suffered its first defeat under the leadership of its new coach, Kiki Sitten, who led the team in the third game since his succession to Ernesto Valverde earlier this month.

Barcelona has become threatened with losing the top spot in the Spanish league in favor of its historical rivals Real Madrid, where the balance of the Catalan club in the leadership stopped at 43 points, with a difference of goals only from the Royal Club, which meets tomorrow Sunday with its host Valladolid.

Uruguay striker Maxi Gomez missed a penalty kick for Valencia in the 12th minute after goalkeeper Marc Andre Ter Stegen, who impressed brilliantly in the first leg of the match and responded to a series of attacks on the owners of the land.

Valencia's first goal came with friendly fire by Jordi Alba by goal in the 48th minute, then Maxi Gomez added Valencia's second goal in the 77th minute.