The summer transfer window has now begun, with rumours and speculation continuing to swirl as Chelsea eye possible reinforcements.

The Blues failed to bring in a single player during the January window, despite seeing their transfer ban cut short by FIFA, but have already been busy this summer.

Here, Sports Mole rounds up the latest news on possible comings and goings from Stamford Bridge.

Thursday morning's Chelsea transfer talk news roundup:

Frank Lampard 'at odds with Chelsea hierarchy over Declan Rice'

Chelsea are reportedly unlikely to sanction a move for West Ham United midfielder Declan Rice before the end of this summer's transfer window.

Blues boss Frank Lampard is believed to be desperate to bring Rice back to Stamford Bridge and ultimately convert him into a central defender.

However, according to The Athletic, Chelsea's hierarchy have reservations over a deal, which could cost the London giants in excess of £70m.

The report adds that some members of the board are still unsure whether Rice has addressed the 'technical deficiencies' that saw him released from the club at the age of 14.

The Hammers have the England international on a long-term contract until the summer of 2024 with the option of an additional 12 months, placing them in a strong negotiating position.

Rice played the full 90 minutes as West Ham started their 2020-21 Premier League campaign with a 2-0 home defeat to Newcastle United on Saturday night.

Emiliano Martinez confirms Arsenal exit

Arsenal goalkeeper Emiliano Martinez has announced that he will be leaving the Gunners after a 10-year spell in North London.

The 28-year-old has been sent out on loan six times during his stint in the capital but became an integral part of the FA Cup-winning team last season following Bernd Leno's injury, starting in the 2-1 win over Chelsea in the final.

Martinez also helped the Gunners lift the Community Shield in what will turn out to be his last game for the club, with the Argentine confirming on social media that he is set to depart.

"For me, I could not be happier to leave through the front door with the Arsenal fanbase supporting me and the club supporting me," Martinez said in an Instagram video.

"I had 11 years at the club, and even if it was a hard road for me, and I suffered through my time at Arsenal, today I am happy and I tried to show young goalies how work pays off. When you work hard, you are not going to be happy the whole time, you are going to have frustration, bad times in life.

"They all understood at Arsenal and they support me for my decision. The Arsenal fanbase were always there for me, I felt their love.

"Even when Bernd got injured this season, I received loads of messages like 'we trust in you,' 'you are our goalie'. That made me confident, made me win games and made me the keeper I am today.

"They understood my story and they love the way I worked in the club. I am so glad to be part of the Arsenal family for 11 years."

Aston Villa are reportedly closing in on a deal for the shot-stopper, who made a total of 38 appearances for Arsenal, with 23 of those coming in the 2019-20 campaign.

Mikel Arteta's side have reportedly identified Dijon goalkeeper Runar Alex Runarsson as Martinez's replacement.

More transfer news from Chelsea:

Chelsea 'refused to include Olivier Giroud in Edouard Mendy deal'
Chelsea reportedly rejected Rennes' initial demands of £37m plus Olivier Giroud to sign goalkeeper Edouard Mendy, instead agreeing a £25m fee for the shot-stopper. Read more.

West Ham United to rival Inter Milan for Chelsea's Emerson?
West Ham United and Inter Milan will battle it out for the signature of out-of-favour Chelsea defender Emerson Palmieri, according to a report. Read more.

Rennes 'want Fikayo Tomori from Chelsea as part of Edouard Mendy deal'
Rennes inform Chelsea that they want Fikayo Tomori included in a proposed deal for Edouard Mendy, according to a report. Read more.

Bayern Munich 'revive interest in Chelsea winger Callum Hudson-Odoi'
Bayern Munich reportedly revive their interest in signing Chelsea winger Callum Hudson-Odoi, who is also wanted by Juventus and RB Leipzig. Read more.

West Brom complete signing of former Chelsea defender Branislav Ivanovic
Branislav Ivanovic has signed a one-year deal at The Hawthorns. Read more.