Chelsea manager Mauricio Pochettino has given a worrying injury update on Christopher Nkunku.
Chelsea confirmed on their club website earlier today that Christopher Nkunku has picked up another injury.
And Mauricio Pochettino has now claimed that the Blues do not even know when he sustained it.
The forward came off the bench in their last game, the 1-0 loss to Liverpool in the Carabao Cup final, but was unable to make much of an impact.
It has been a really difficult season for Nkunku, who has missed so many matches because of several fitness issues.

Christopher Nkunku injuries worrying
Pochettino and Chelsea have to be concerned with this latest injury setback. Nkunku will now miss the Blues’ next game against Leeds United tomorrow and has only made two starts in the Premier League this term.
The club invested a lot of money in the Frenchman, and right now it is starting to look like a bit of a waste.
But it is, of course, only his first season at Stamford Bridge. Next term, hopefully Nkunku can put all of these fitness problems behind him and remind everyone of what he can do.
The France international proved to be an incredible goalscorer during his time in Germany, netting 70 times in 172 appearances for RB Leipzig.
For now, though, it looks like Pochettino is going to have to rely on the likes of Nicolas Jackson and Cole Palmer, who are the team’s two highest goalscorers.
The Argentine is going to be without Nkunku for a while, confirming that the former Leipzig star could be absent for up to four weeks.
Receive a digest of our best Chelsea content each week direct to your mailbox
