Barcelona midfielder Cesc Fabregas will be sidelined for the next three weeks after pulling a hamstring in training on Saturday. The Catalan giants £29million summer signing has been in fine form since joining from Arsenal in the transfer window, netting in four of his first five league games for the club. Yet the 24-year-old suffered a hamstring strain in his right leg during training on Saturday and will miss Barca\'s trip to Sporting Gijon in the Primera Division on Sunday. Fabregas will be sidelined for Spain\'s games against Czech Republic and Scotland, while he is also set to miss Barca\'s next two fixtures, at home to Racing Santander in La Liga and the clash versus Viktoria Plzen in the Champions League. Speaking via social networking site Twitter, Fabregas declared his relief the injury was not serious: \"Can\'t wait to start working on recovery, to be back as soon as possible. Luckily it\'s not serious. Keep u updated. Have a nice Saturday!\" Cesc joins Andres Iniesta, Alexis Sanchez and Ibrahim Afellay on the sidelines, but coach Pep Guardiola has defenders Carles Puyol and Gerard Pique available again after injury.