The Spaniard and the Frenchman suffered their injuries in the first half of the first tie of the Super Cup encounter with Sevilla. During the game at the Ramon Sanchez Pizjuan, which Barça won 2-0, Mathieu suffered a hamstring problem and was subbed out in the 27th minute. Iniesta picked up a bruised knee and left the field after 35 minutes.

On Monday, after having medical examinations, Barcelona communicated that Iniesta will be out for approximately two weeks, while Mathieu is sidelined for three weeks. Missing the Super Cup return leg vs Sevilla, La Liga's opener vs Bétis and the away match vs Athletic Club Bilbao.