Dejan Lovren (Liverpool)
The most obvious selection in this slide show, Dejan Lovren has been turning in suspect performances for a few years now at Liverpool. He is, simply, too clumsy to be playing at such a high level. Time and again Liverpool have seen good team performances ruined by defensive errors by the Croatian.
That a team with such a potent attacking front three in Sadio Mane, Roberto Firmino, and Mo Salah are punctured by such a poor defence is almost comical. Lovren has failed to form a solid partnership with any of the centre-backs he's played beside, seemingly lacking the necessary communication skills to marshal a defence. He's not expected to be a ball-player, passing out of defence to initiate attacks, but the skills expected of a man of his size - heading ability and strength - appear to be lacking too much of the time too.
The arrival of Virgil van Dijk this month from Lovren's old team Southampton should help Liverpool's performances immeasurably, and it would be expected that it will be Lovren himself to make way for him in the centre of defence.