The Blues were one of several teams to identify the Slovenia international as a potential attacking addition during the summer transfer window.
However, Sesko ultimately decided to extend his contract with the Bundesliga giants in a bid to continue earning regular football at this stage of his career.
Although the 21-year-old has subsequently made 18 starts and two substitute outings in Germany's top flight and the Champions League, his position at the club appears less certain than it was earlier in the year.
Chelsea to make Sesko offer?
According to TEAMtalk, Chelsea are sensing an opportunity where they can take advantage of Leipzig's current predicament from a continental perspective.
Marco Rose's side have lost each of their six Champions League fixtures, already ensuring that they will not reach the last 24 of the competition.
As well as missing out on important revenue through that competition, Leipzig have required two successive wins to remain with six points of leaders Bayern Munich in the Bundesliga table.
That brief revival may be enough to ensure that Leipzig turn down any offers for Sesko in January, yet it is alleged that an exit in the summer has become more likely.
Chelsea have reportedly already requested an update on the situation, aware that there is now no specific release clause in his contract.
The likes of Arsenal and Manchester United may plausibly renew their interest if it becomes apparent that Leipzig are ready to listen to suitable proposals.
Do Chelsea need Sesko?
With Nicolas Jackson, Christopher Nkunku and Marc Guiu as his three recognised strikers, there is a strong argument that Enzo Maresca does not need to strengthen his forward line.
In all competitions, the trio have 27 goals between them, Guiu still very much behind the other pair despite being the leading marksman in the Conference League.
That said, speculation persists regarding the future of Nkunku, who has allegedly been frustrated by being restricted to just two starts in the Premier League during 2024-25.
If a situation arises where Chelsea can recoup the £52m that they coincidentally paid Leipzig, they could reinvest it into a player of Sesko's profile.
Written by
Darren Plant