Edouard Mendy has agreed a contract with Chelsea but Rennes are standing firm over their asking price, according to reports in France.
Chelsea are keen to sign competition for Kepa Arrizabalaga following the Spaniard’s poor form last season.
Chelsea have been in talks with Rennes to discuss a deal for Mendy but have so far been unable to agree on a fee for the 28-year-old.
According to RMC Sport, Mendy has now agreed to sign a five-year contract with Chelsea and has informed Rennes that he wants to make the move to Stamford Bridge.
However, Chelsea’s current bid of €20 million (£18.4m) falls short of Rennes’ €28m (£25.8m) valuation.
When asked about Chelsea’s push to sign Mendy on Thursday, Frank Lampard replied: ‘It’s a situation I don’t want to be drawn on.
‘Mendy is a Rennes player, so it’s a non-starter for me to talk about.’
But earlier this week, Rennes captain, Damien Da Silva, suggested that Mendy’s move to Chelsea is just a matter of time.
‘We are a little selfish, we don’t want to lose Edouard Mendy but it’s part of football and the transfer market,’ Da Silva told Telefoot.
‘He’s a great goalkeeper who deserves what happens to him.’
Chelsea will begin their new Premier League campaign away to Brighton on Monday evening.