Chelsea are understood to be closing in on a deal to bring Rennes goalkeeper Edouard Mendy to Stamford Bridge.

The Blues have tracked the Senegal stopper for some time and are thought to have been impressed with his form with Rennes, who will play Champions League football next season.

And the west Londoners are now close to an agreement to make the 28-year-old their seventh senior signings of a hugely fruitful summer.

Kepa Arrizabalaga is still yet to convince manager Frank Lampard he can live up to his £72million transfer tag as Chelsea's record recruit, and a world-high fee for a goalkeeper.

But any deal for Mendy would be as competition for Kepa, not as a replacement for the Spain star.

Chelsea have thrown huge financial backing behind Lampard’s Stamford Bridge revolution this summer, with the Blues’ spending already past the £200m mark even before any deal for Mendy.

Chelsea kick started their squad overhaul by bringing in Ajax forward Hakim Ziyech and prolific RB Leipzig striker Timo Werner.

England left-back Ben Chilwell and Paris St Germain defender Thiago Silva were next through the doors, with Germany midfielder Kai Havertz another coveted talent to join Lampard’s ranks.

France Under-21 defender Malang Sarr has also arrived, but is considered a long-term project and will head straight out on loan.

Meanwhile Sheffield United have signed Derby pair Jayden Bogle and Max Lowe and sealed a loan deal for Chelsea's Ethan Ampadu.

The wing-backs have both signed four-year deals at Bramall Lane and move for an undisclosed combined fee while Wales international Ampadu will spend the season on loan.

Chris Wilder told the club website: "The Championship has been a great recruitment area for us and I wanted to bring some young players in who will provide competition for places.

"Jayden and Max will put huge pressure on George (Baldock) and Enda (Stevens).

"It was important we got the right characters, the right type of players, ones who are athletic and technically very good, both are modern-day wing-backs and I’m looking forward to working with them."

Regarding Ampadu, he added: "Ethan is an outstanding young player for Chelsea, and we’ve worked really hard to get his signature for the season.

"It’s an important season for Ethan and playing in the Premier League for us is a good move for everyone. He brings a lot of qualities to the group and he’s someone we’ve tracked for two or three seasons."

The 19-year-old joined the Blues from hometown club Exeter in 2017 and has since won 13 caps for Wales, the land of his mother’s birth, as well as spending last season on loan with Bundesliga side RB Leipzig.

Bogle, 20, had spells at Reading and Swindon before moving to Derby as a youngster in January 2016. He was promoted to the first team for the 2018-19 season and went on to make 50 appearances.

The left-sided Lowe, aged 23, was a product of the Derby academy and England U20 and recently had a successful loan spell at Aberdeen. 

Wilder added: "We’ve got a clear plan and identification of what we need and we’re still going through that process. We’re not just signing players because other people are in for them, we’re signing these players because they fit into what we are about.

"It’s game on for everyone, it’s not a warning, it’s a fact and yet again I have to thank the board for making the two permanent signings happen because it’s a great bit of business for the football club."

Earlier on Monday, Everton confirmed a two-year loan deal for Real Madrid's Colombian midfielder James Rodriguez and Newcastle announced the signings of Bournemouth pair Callum Wilson and Ryan Fraser.