They say that match compensation of 320 euros for the main referee and 160 euros for assistant referees, corresponding to 3,400 and 1,700 Swedish kronor, is too little.

"We intend to come back and judge when it is under suitable conditions," the statement continues.

Among the matches in the premier round, reigning champions Barcelona, ​​with Swedish star Fridolina Rolfö, face Levante away from home.