​Barcelona suffered a major set-back today as midfielder Sergio Busquets was ruled out of his sides next two matches ahead of a crucial week for the Spanish side, according to ​ESPN.





If reports are correct, Busquets will miss Barca's crucial Champions League knockout showdown with Manchester City at Camp Nou on Wednesday night, as well as a huge El Classico derby against Real Madrid - a game that could potentially decide the La Liga title race with the teams currently separated by a single point.





The Spanish midfielder has been undergoing intense recovery work since suffering ankle ligament damage in the Copa del Rey semifinal second-leg win away at Villareal at the beginning of the month, but Busquets is still yet to return to training with his teammates.





Barca confirmed the news in a club statement that also revealed an injury to deputy right back Martin Montoya, who had replaced the suspended Daniel Alves for Barca's 2-0 win against Eibar:





"Martin Montoya was unable to join the rest of his teammates after being diagnosed with a small fracture to his cheek bone - the result of an untimely blow to the face in the first half of Saturday's match.





"The defender trained on his own Sunday morning and will wear a protective mask in the coming days. The injured Sergio Busquets and Thomas Vermaelen did not participate either."





Manchester City trail 2-1 ahead of Wednesdays return leg, and the Sky Blues will look to capitalise on more Barca misfortune after a Lionel Messi first-leg penalty miss.