Liverpool boss Jurgen Klopp is believed to be angry at the club for their failure to sign Lyon playmaker Nabil Fekir. 

The Frenchman was minutes away from being announced as a Red before the World Cup kicked off in Russia, but the deal was suddenly stopped out of nowhere.

It was a strange moment. The move had received a huge amount of attention from all sorts of media outlets, it was essentially a done deal, thousands of 'Fekir to Liverpool confirmed' articles had been prepped in anticipation. Then all of a sudden, poof, the transfer was gone - and Lyon president Jean-Michel Aulas had announced that the deal had been cut.

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Nobody quite knew why, Aulas claimed Liverpool were taking too long, but other sources are claiming that the Merseyside outfit were concerned over an ongoing knee problem the 24-year-old has. Either way, it didn't happen - and Klopp is said to be 'furious'.

That is, according to the Mirror (via Daily Star). The German is furious that a deal didn't get pushed over the line, even though the medical team found out about the player's recurring knee trouble ever since an operation back in 2015.

However, a deal could still happen. The report goes on to claim that Liverpool aren't completely put off by the injury, but a new deal could be on the cards - with a restructuring of the payments in order to cover Liverpool should something not work out.

There is a problem, though. Since the fall through, both Manchester United and Real Madrid are beleived to have joined the race for Fekir's signature.

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Unnerving, no doubt, but if Liverpool have already managed to agree terms with Fekir once, and persuade the player to join, surely they'll be confident of doing it again.