Manchester United's rejuvenation under Erik ten Hag came to a screeching halt during Sunday's dismal derby defeat by Manchester City.
But the Europa League gives him an immediate opportunity to shake things up and get back on track ahead of Sunday night's Premier League trip to Everton.
Therefore, all eyes will be on his team selection for Thursday's fixture against Omonia Nicosia in Cyprus.
Ten Hag will need to find the perfect balance between selecting a squad that will win the game and giving certain players time to rest following the international break.