3) Simon Mignolet - Liverpool
Liverpool have made progress under Jurgen Klopp, albeit a little slowly, but it is progress nonetheless. Once a traditional 'Big 4' team and a permanent fixture in the Champions League, the Reds took a while to get back in the mix.
Liverpool were arguably one of the best teams when the top six sides played each other and they do have a big-game mentality now. However, while the outfield is shaping up nicely, their goalkeeper remains their biggest issue.
Simon Mignolet was their first-choice goalkeeper but Lorius Karius soon usurped him before an injury saw the Belgian get back in between the sticks. His consistency in goal has been questioned and his shot-stopping ability has been put to the test. His confidence in dealing with crosses has also been shaky.
The arrival of Danny Ward only puts more pressure on Mignolet. "We have three goalkeepers and they can all show what they are able to do, and then we will see who will start," said Klopp when asked about who would be no.1.
That's a lot of pressure to put on the senior-most 'keeper at the club.