Liverpool fans adore Andy Robertson for several reasons.First of all, and most importantly, he’s a top player. He’s up there as one of the best full-backs in world football right now.But they also love the 25-year-old for his personality off the pitch - he’s a funny guy who enjoys a laugh - and his ’s**thousery’ on it.Robertson has been involved in various incidents with opponents that have gone viral on social media over the past 12 months.The Scot was spotted laughing at Everton’s Tom Davies during December’s Merseyside derby, he was involved in a similar incident with Manchester City’s Kyle Walker a month earlier, and then there was the clash with Rafinha at the Club World Cup.

But the fact he’s more than happy to get stuck in and give opponents some stick in the process has helped to make him a fan favourite with the Anfield faithful.

Of all the incidents Robertson has been involved in, though, there is one that he looks back with regret.

During last season’s epic comeback against Barcelona in the Champions League, Robertson needlessly shoved the six-time Ballon d’Or winner’s head.

While Liverpool fans may have enjoyed it at the time, Robertson admits that he’s not proud of himself for doing it.

“When I look back on things I don’t really regret anything because I feel as if everything is experience that makes you what you are,” Robertson told the Daily Mail. “But I do look back on that moment with Messi as one regret. I don’t like seeing it. When I saw it afterwards I was gutted.

“We all had the attitude that day that nothing was standing in our way to get to that final and we created that atmosphere around the stadium and me and Fabinho were tracking him and there was a tangle of legs and we were on the floor. To do that to the greatest player that has ever played…

“I have nothing but respect for him and Barcelona, but we went into that game with the attitude that we were 3-0 down, we needed a miracle, we needed something special and if that little thing stopped the best player in the world playing to his highest potential…

“But I do regret it. That’s not me as a person. That’s not my personality. But that night a lot of things happened that you don’t really remember. There was no thought process behind it. We were right up for the game. The fans were roaring and you get caught up in it. You’re a human being. We were 3-0 down in the semi-final of the Champions League, which we wanted to put right from the season before. It was the loudest changing room I have been in before the game. You could see the focus and the determination in all of us and maybe I went over the line.

“But Liverpool fans like the edge, I think. I feel that maybe this whole team is quite good at representing Liverpool right now. Liverpool is a big working class city. We go out and show hard work. We get beaten in games but what you can’t question is that every time we go out there, we give 100 per cent.”

Fair play to Robertson for admitting that he regrets it.

It wasn’t a nice thing to do to Messi, who deserves respect as arguably the greatest footballer of all time.

But without this kind of attitude from the players on the night, who knows… maybe Liverpool wouldn’t have added a sixth European Cup to their silverware cabinet at the end of last season.