The 22-year-old defender was strongly linked with both Liverpool and Manchester United last year but the Frenchman remained with the Bundesliga giants at the end of July.
Upamecano’s contract has a release clause of £40m, though, and Leipzig CEO Oliver Mintzlaff recently hinted that the centre-back could soon be on the move.
Chelsea have reportedly entered pole position in the race to complete a deal for Bayern Munich star David Alaba during the summer transfer window.
Despite being as a key man at the Allianz Arena, Alaba will be a free agent at the end of the campaign, which has eventually led to widespread interest in his signature.
Chelsea are ready to pounce for Borussia Monchengladbach centre-back Matthias Ginter by making a £30m bid, according to The Sun.
The Blues are interested in a bid for the 26-year-old defender in the upcoming transfer window after his influential performances in the current campaign.
Manchester United have reportedly expressed an interest in making an audacious move for Chelsea star N’Golo Kante.
The Red Devils are expected to be busy in the coming week and continue to be linked with a big-money move for Borussia Dortmund ace Jadon Sancho.
However, according to The Mirror, United are also eyeing up a surprise swoop for Kante, having made contact with the Frenchman’s advisors to discuss a possible deal.