When sidelines are injured, depressed or under paid they refuse to train or play matches.
Check the "Injured players" page in the "Training" section as well as the "Player salaries" page in the "Team management" section to make sure that your players are in good shape and properly paid.
Check the "Injured players" page in the "Training" section as well as the "Player salaries" page in the "Team management" section to make sure that your players are in good shape and properly paid.