Liverpool could face stiff competition in the race to sign Marc Guehi with Chelsea also on the hunt for another defender. They have been tipped to firm up their interest in the England international after Levi Colwill was struck down with a serious knee injury, which will keep him sidelined for the majority of the season.
With that in mind, Express Sport looks at seven alternative options for Liverpool... 
Sky Sports Germany.
Leoni boasts plenty of potential and looks set to enjoy a bright future at the highest levels of the game. He might not be ready to make an instant impact, though, which is something Liverpool will need to consider.
Konstantinos Koulierakis Liverpool have already spent time scouting the Greece international with a view to a potential move, according to the Daily Mail. He is reportedly valued at around £50m by Wolfsburg and has also been linked with clubs like Real Madrid and Aston Villa.
Koulierakis, like Leoni, is a hugely exciting prospect with many of the qualities needed to thrive at the highest level. However, he is not quite the finished product and would be more of a project player than an instant starter.
Record, he will cost around £52m with Sporting eager to make a profit if he is sold. " data-has-syndication-rights="1" data-portal-copyright="GETTY" data-licensor-name="GETTY" /> 
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