The one Group F player Liverpool should sign after the World Cup

The World Cup group stage is over, and many players have caught the eye with their impressive displays ahead of the transfer window.

Group F was the tale of one giant and three hopefuls, as Argentina were dragged through the group by Lionel Messi, leaving Bosnia, Iran and Nigeria to scrap for second place. With one win, one draw and one defeat, it was Nigeria who went through to the last 16, following up their 2013 African Cup of Nations win with a decent World Cup campaign.

Unsurprisingly, Messi's heroics for Argentina have stolen the headlines in Group F, but with three smaller nations also in the group, it has provided a great platform for some unknown players to make names for themselves, such as Bosnia's Muhamed Besic and Nigeria's Juwon Oshaniwa – but Liverpool should be looking to sign one of the bigger names from the group.

The collapse towards the end of the season against Crystal Palace ultimately cost Liverpool the title, and Brendan Rodgers now must strengthen his defence. Jose Enrique's injury left Liverpool short at left back, whilst rumours persist over the future of Daniel Agger in the heart of the back line, with the Dane linked with a move away from Anfield.

A possible solution would be to sign a player who can play at both left back and centre back – and fortunately for Rodgers, there's a player in Group F who can do just that; and he's young and well within the Reds' budget.

Argentina's Marcos Rojo plays at centre back for his club, Sporting Lisbon, but has played at left back and even left wing back for Alejandro Sabella's Argentina this summer. His positional versatility in the back four has increased interest in him, but it was reported early last week that he had become Rodgers' primary target after his bid to sign Sevilla's Alberto Moreno collapsed.

At just 24, former Estudiantes man Rojo has his best years ahead of him, and after an impressive World Cup, he could be a sensible addition for Liverpool. Requiring depth ahead of their Champions League campaign, Rojo would solve some of the problems Rodgers had last summer by being able to play a number of positions.

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