#4 Petr Cech (Arsenal)
Cech is currently Arsenal's number one but this could easily change, now that the Gunners have signed Leno. The German's arrival means Cech's first-team spot is under threat as manager Unai Emery looks to shape a team in his own image.
The veteran could very well pack his bags and move elsewhere as a lack of minutes was the reason he ended his long allegiance with Chelsea and moved to North London to play for Arsenal in 2015.
In 2017-18, the Czech veteran appeared 38 times for the Gunners and managed to keep 12 clean sheets. Evidently, he wasn't as solid as he once used to be. At 36, he may be past his prime already but, being a keeper who has won an impressive number of trophies in his career, he is still regarded as one of the top keepers in the Premier League.
With only a year left on his contract, if the Gunners are not going to use him more, it would be wise to look for potential suitors for the Czech international. As per rumours, Napoli is interested in signing him.