Manchester United might never have felt lower in the last 30 years than they did after their shocking defeat at home to Bournemouth on Saturday but they have no time to wallow. Their Champions League future is on the line, and they have to beat Bayern Munich on Tuesday to avoid going out of Europe altogether.
Victory against the German champions - who have already qualified for the last 16 as Group A winners - would assure United of a place in the Europa League play-off round, but will only see them into the Champions League knockouts if Copenhagen and Galatasaray draw their match in the Danish capital.
All United can do is complete their part of the bargain, and that will mean making a huge improvement on their abysmal performance against Andoni Iraola's side, who cut through them with a perfectly-executed game plan of targeted pressing. Bayern, meanwhile, have not lost a Champions League group match for more than six years.
But if Erik ten Hag makes a few tweaks and can get the players to come together and fight for their club, United stand a chance of beating Thomas Tuchel's side. Here's what the Dutchman needs to do to pull it off...