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.

Wednesday morning's Chelsea transfer talk news roundup:

Who is Chelsea-bound attacker Kai Havertz?

Chelsea's summer spending spree is set to continue with the arrival of Bayer Leverkusen star Kai Havertz in the next few days.

The Blues are believed to have agreed personal terms with the Germany international after shaking hands on a €100m (£90m) deal with Leverkusen.

Havertz will become Chelsa's sixth signing of 2020, following the captures of Hakim Ziyech, Timo Werner, Ben Chilwell, Malang Sarr and Thiago Silva.

With Havertz's arrival at Stamford Bridge now imminent, Sports Mole takes an in-depth look at one of world football's most in-demand players.

Where does he play?

As is the case with many youngsters in the modern era, Havertz is comfortable playing in a number of positions.

The 21-year-old has played as a number six, number eight, right winger, false nine, number 10 and, well, pretty much anywhere across the frontline.

It was through the middle where Havertz had his most successful spell last season, with Leon Bailey and Moussa Diaby often providing support from wide.

However, with Werner almost certain to lead the line at Chelsea, Havertz is likely to take up a position just off his compatriot in a 4-2-3-1 formation.

How did he perform last season?

Havertz was in sensational form for Leverkusen last season, helping the German club to fifth place in the Bundesliga, to the DFB-Pokal final and the Europa League quarter-finals.

The German scored 18 goals in all competitions and set up eight more, 14 of those goal involvements coming in the space of 10 games between February and May.

In May, upon the Bundesliga's return from the coronavirus hiatus, he became the first player to reach 35 goals in the German top flight before the age of 21.

International experience?

Havertz, who has spent his entire club career to date at Leverkusen, earned his first international cap for Germany in September 2018.

The youngster replaced Werner late on in a 2-1 win over Peru, becoming the first player born in 1999 to represent Die Mannschaft in the process.

He has since gone on to earn seven caps under Joachim Low and netted his only goal in October's 2-2 draw with Argentina in Dortmund.

Were any other teams interested?

Pretty much every one of Europe's elite clubs have been linked with Havertz at some point or another, including Leverkusen's domestic rivals Bayern Munich.

Liverpool, Manchester United, Real Madrid and Barcelona were also tipped to move for the versatile attacker, but Chelsea appear to have won the race.

Given the huge interest in him, Leverkusen placed a £90m valuation on his head and Chelsea - seemingly immune to the financial blow of the coronavirus crisis - were happy to pay.

Havertz is a long-term investment for the Blues, of course, and looks likely to be a regular member of the first team for years to come.

Antonio Rudiger hopes to have convinced Kai Havertz to join Chelsea

Chelsea defender Antonio Rudiger has revealed that he has been involved in convincing international teammate Kai Havertz to move to Stamford Bridge this summer.

The Blues are understood to be on the verge of completing a £72m deal for the highly-rated 21-year-old, with that fee potentially rising to a club-record figure of £90m.

Should Havertz arrive then he would become Chelsea's sixth signing of a busy transfer window and, having already played a part in getting compatriot Timo Werner to sign, Rudiger is hoping to have pulled off something similar with another Germany teammate.

"Everything went well with Timo Werner, so I made my contribution," Rudiger told reporters at a press conference ahead of Germany's Nations League clashes with Spain and Switzerland.

"And I hope that it works again now [with Havertz]."

In addition to Werner, Chelsea have also signed Hakim Ziyech, Ben Chilwell, Thiago Silva and Malang Sarr during the ongoing window.

More transfer news from Chelsea:

A look at the Blues' new signings ahead of Kai Havertz's expected arrival
Hakim Ziyech, Timo Werner, Ben Chilwell, Malang Sarr and Thiago Silva are already on board at Stamford Bridge. Read more.

Chelsea put £80m price tag on Inter Milan target N'Golo Kante?
Chelsea are allegedly prepared to demand £80m if Inter Milan look to follow up their interest in midfielder N'Golo Kante. Read more.

Inter Milan chief denies interest in Chelsea midfielder N'Golo Kante
Inter Milan sporting director Piero Ausilio denies reports that the club are interested in signing £80m-rated Chelsea midfielder N'Golo Kante this summer. Read more.