Former England goalkeeper Ben Foster has slammed Chelsea No1 Kepa Arrizabalaga.
Foster insists the Spain international isn't good enough for Chelsea after his performance in Saturday's 2-2 draw with Everton.
"Let's talk about Everton's equaliser because I think Kepa should save it," Foster said on his YouTube channel. "A top goalkeeper saves that.
"This is a big moment, we're in injury-time so if he saves that, it's 2-1, three points, boom, everyone is happy. These are the fine margins but I think a top goalie has to save that.
"It's a slightly awkward one so I've got a bit of sympathy but you need to make those big saves. He fell a little bit short.
"I don't think Kepa is the right guy for it, full stop. I don't think he's the long-term solution."
Kepa has played 151 times for Chelsea, conceding 154 goals and keeping 58 clean sheets but is likely to lose his place to back to Mendy once he returns from injury.
Foster though believes that even if Potter isn't convinced by Mendy either, Kepa can no longer be considered to be a long term choice for the Blues.
"I think at the end of the season either (Edouard) Mendy will get fit and get back in the team or they will need to go into the market and sign somebody.
"They spent £70m on Kepa by the way and £25m on Mendy, that's almost £100m on goalkeepers."