Manchester United manager Louis van Gaal put his side’s 2-1 defeat by FC Midtjylland down to Murphy’s law.
Memphis Depay put the visitors ahead in the first leg of their Europa League last-32 tie, but Pione Sisto and Paul Onuachu gave the hosts victory.
Van Gaal, already without 13 players, lost David de Gea during the warm-up and used an adage that means anything that can go wrong will go wrong.
“It is the law of Murphy I think,” the Dutchman told BT Sport.
“A lot of things are happening in the heads of the players and in the first 10 or 15 minutes we were not so good.”
Van Gaal felt his side improved as the first half went on and could have scored more goals.
But he added: “In the second half we didn’t win any duels, any second balls. You cannot afford a second goal, but we could have scored also.