Barcelona coach Hansi Flick said his team paid a "high price" for beating Osasuna 3-0 after losing Dani Olmo to injury in a game they were forced to play on Thursday.
The match was postponed earlier this month after the death of Barça's first team doctor, Carles Miñarro, and rearranged for this week on the back of the international break, despite protests from both teams.
Barça eased to victory with goals from Ferran Torres, Olmo and Robert Lewandowski to move three points clear at the top of LaLiga, but the win was tainted by Olmo's injury.