Chelsea demanded a £12.5million package to let German defender Antonio Rudiger leave on loan this season, according to reports.
The centre-back was strongly linked with moves to Paris Saint-Germain, Tottenham Hotspur and Everton towards the end of the window but a move away from Stamford Bridge failed to materialise.
Rudiger had fallen out of favour with Frank Lampard following the arrival of Thiago Silva from Paris Saint-Germain and the rise in form of Kurt Zouma in west London.
And according to The Athletic, the Blues asked interested clubs to pay a £5million loan fee for the German centre-back - while they also asked for his entire wages to be covered by his new club.