Porto's Samu scored the first goal of the new league phase, but it was all downhill after they took a seventh-minute lead at Bodø/Glimt, the Norwegian champions rallying to win 3-2. "If we don't give it our all, we won’t win," concluded defender Nehuen Pérez. "We have seven games to go and we have the ambition to have a good run in the Europa League."

This will be Porto's ninth meeting with United (their record in the previous eight: W2 D3 L3), who are also smarting after letting a 1-0 lead slip in their opener to draw 1-1 against coach Erik ten Hag's old side, Twente. "We didn't lose but it feels like a loss and that's something, at home against Twente, that can't happen," said goalscorer Christian Eriksen.

Did you know?

United's heaviest continental defeat of all time came in Portugal: 5-0 at Sporting CP in the 1963/64 Cup Winners' Cup, but they also lost 4-0 at Porto in the same competition in 1977.