Liverpool boss Jurgen Klopp lavished praise on Scottish left back Andy Robertson.
The flying fullback was at his best against Arsenal in the Carabao Cup semi final second leg on Thursday.
After a 0-0 draw at Anfield, Liverpool went to the Emirates Stadium and claimed an impressive 2-0 win to progress to the final.
Asked if Robertson was the best left back in Europe, Klopp said: “For me, yes, but I am not sure that is too important, to be honest. For me, absolutely. Outstanding player and, again, the mix of his skill set and his mentality, that makes him so special.
“You see the situations when he has the ball that he is a good footballer but the desire in each game when he really wants to defend with all he has, I think that’s the biggest improvement since he arrived. That was a little bit the issue in the early stages when he came from Hull to us; he was already a massive talent but defending-wise we were not over the moon. But he improved a lot and is now the full package, which is really helpful.
“Both full-backs are obviously quite good. That we have players like this in different positions is the reason why we were quite successful in the past – not as successful as probably a lot of people want, but we played some good stuff and the reason is because the boys are just an outstanding group.”