Chelsea are eyeing a move for Edouard Mendy though Rennes are reportedly reluctant to sell the goalkeeper until they find a replacement.
Blues boss Frank Lampard is eager to sign a new shot-stopper with Kepa Arrizabalaga having struggled in recent times.
The Spaniard, who Chelsea paid a world record fee for in 2018, was dropped by Lampard after a number of errors and looks set to be on his way out of Stamford Bridge.
Mendy, 28, has been identified as a possible target with reports suggesting Chelsea had a bid of €16m turned down over the weekend.
Though TuttoMercatoWeb claim that Rennes will not sell without a replacement, despite Mendy hoping to join Chelsea.
The Ligue 1 season is already underway and it’s reported that Rennes do not want to lose their No 1 without having someone ready to slot in.
Lampard has already been very busy this summer, bringing five new faces to the club.
Timo Werner, Hakim Ziyech, Thiago Silva, Ben Chilwell and Malang Sarr have all arrived at Stamford Bridge with Kai Havertz expected to join them.
He said last month: “We'll look at that [adding more players], because that's our job, we're very joined up on that already.
“From having a transfer ban (last summer) you feel we've missed where other clubs have spent and improved, and recruitment is a huge part of this game.
“Nights like this [Champions League defeat to Bayern Munich] in a footballing sense, show me a lot, tell me a lot.
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“So it's a conversation now, the season is ended, it's a very quick turnaround, so now is the time to see where we can improve, what areas we can improve on.
“I wouldn't expect anything, I wouldn't expect, but it's our job to go away and see what happens, and see if we can improve.
“In a football sense I feel like I know where we can improve, so now it's time to look at that.”