Yes a Chelsea player who they got massive value for, inspite of not wanting him. You can add Mata, DeBryune and a host of others Chelsea didn't want and sold on for a pretty penny.
Yet when they buy, they get good value too. DeBryune last season was about as hot as Costa was at Athletico, yet Chelsea didn't spend 57 ml ion to get him. In spite of the whole world knowing Chelsea needed a top class striker. And they took said striker off The Spanish league champions and CL finalist. Best striker outside of Messi and Ronaldo in Spain.
So the whole: "they know we have money" line is just that, a line. Chelsea has money too, and they almost never get taken.