On a night when Liverpool celebrated the goalscoring arrival of their record signing Alexander Isak, a moment of madness has proved costly for their other in-form forward.

Hugo Ekitike scored the winner in Tuesday’s 2-1 victory against Southampton to progress to the fourth round of the Carabao Cup.

But, caught up in the moment of his 85th-minute goal, striker Ekitike removed his shirt and held it up to the Liverpool fans in celebration.

He most likely knew he would get booked for that and was happy it was a price worth paying, but what he had seemingly forgotten is that he had already been shown a yellow card.

The sending-off means he will be suspended for Saturday’s Premier League game at Crystal Palace – not ideal when the player he is potentially in a battle for a starting spot with is returning to full fitness.

Ekitike went on social media on Tuesday night to apologise, saying: “I was so excited to help the team achieve another victory here in our home for my first Carabao Cup match.

“The emotion got the better of me. My apologies to all the Red family. Thanks to the fans who always support us and to my team-mates for this victory!”

But, speaking just after the game, his manager Arne Slot was left bemused by the incident.

“It is not [stupid] because it was his second [yellow] – it’s stupid even if you haven’t had a yellow card yet,” he said.

“Maybe I’m a bit old-fashioned but I did score a few goals – not at his level but I did – and if I went past three players and put it in the top corner then maybe you can say ‘this is all about me’.

“But if I scored a goal like he did tonight, I would turn to Chiesa and say ‘it’s about you Federico – great assist, great run and I didn’t have to do a lot’. Maybe that’s me being old-school.

“It was stupid, not smart in every sense. The good thing is that his team-mates helped him to get the win over the line, but the thing is he is now suspended for Saturday and that is far from ideal.”