Liverpool take on Barcelona at the Nou Camp on Wednesday as they continue their bid to reach a second Champions League final in two years.
In doing so, they will be returning to the scene of their famous last-16 victory against Barca on 2007, when goals from John Arne Riise and Craig Bellamy helped the Reds through to the quarter-final.
In midfield for Frank Rijkaard's team that night was Spain and Barca legend Xavi, who was withdrawn after 65 minutes in what turned out to be a rare forgettable European season for the World Cup winner.
Xavi went on to win the Champions League four times with Barcelona. The Nou Camp legend, now playing for Al Sadd in Qatar, looks at five key battles where tonight’s game can be won or lost.
Pique v Salah
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The form of Pique in the last few months has shown why he is still the best central defender in the world. Salah will be one of the biggest tests he has had this season. He is now a player who would get into any team in the world and I am sure that Pique is not going to get an easy night.
Alba v Mane
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Alba has so much experience in big games for both Barcelona and Spain and he is going to need to use all of that experience to keep Mane quiet. He has been playing at the same level as Salah this season – and his pace and his goal scoring ability make him so dangerous.
Messi v Alisson
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Nothing has changed. Messi is still the best player on the planet and the greatest of all time. This season he is doing incredible things and showing such hunger. Alisson is a very good goalkeeper and is going to have to produce one of his best performances if he wants to stop Messi – but I am not sure that is possible with the way he has been playing.
Suarez v Van Dijk
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He (Van Dijk) has been the best defender in England this season and one of the best in Europe. Suarez has the talent – but he is also up for the physical side of the game if he needs to be as well. These are both players on such good form that I think it will be one of the most interesting battles of the evening.
Busquets v Firmino
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Busquets is the best at what he does you only have to read the recognition opponents have for him. He is so important for Barcelona and will be so important at keeping Liverpool ’s creative midfield players quiet. He will look to control the game for Barcelona – but players like Firmino can create something out of nothing.
