Antonio Rudiger has set himself a deadline of the next fortnight to make a decision on his Chelsea future, according to reports.
The centre back's contract at Stamford Bridge expires this summer, and although the Blues are keen to keep him, there has been no agreement yet.
And as reported by the Athletic, uncertainty over who will take over from Roman Abramovich as Chelsea owner could hinder the club's efforts to get Rudiger to put pen to paper.
The 29-year-old was out of favour under Frank Lampard but under manager Thomas Tuchel, has evolved into a key defensive lynchpin and leader on and off the pitch.