Chelsea are eyeing wantaway Watford midfielder Abdoulaye Doucoure.
Chelsea were heavily linked with Doucoure during 2019's January transfer window.
And the Blues may spring into action this summer after Doucoure admitted he wants to play in the Champions League but remain in the Prem.
Doucoure said: "We are arriving at the end of a cycle.
"I think I can still progress massively. I can still do great things.
"Obviously, if I am pushed to change clubs, it will be to make a step forward.
"If a club of a high level comes and makes an interesting offer for me, of course the club will let me go easily."