The midfielder joined the membership in January 2018 and made 100 appearances for the west London giants, profitable the FA Cup and the Europa League.
Barkley is ready to headline what could possibly be quite a few exits throughout what stays of the summer season switch window.
As Wesley Fofana closes in on what might grow to be a world-record transfer to Stamford Bridge, Callum Hudson-Odoi is in Germany to bear a medical forward of a mortgage transfer to Bayern Leverkusen.
Ethan Ampadu, in the meantime, is the topic of mortgage curiosity from Serie A facet Spezia, who hope to beat competitors from golf equipment in England, Spain and Germany to signal the Wales worldwide.
The likes of Billy Gilmour, Baba Rahman, Kenedy and Michy Batshuayi might additionally go away within the coming days.
Talking on Monday forward of Tuesday’s sport at Southampton, Thomas Tuchel stated: “I’m very, very completely satisfied when the switch window is over as a result of then we’ve got completely different leverage to push gamers after which the dedication needs to be 100%, we won’t settle for 99%.
“The truth is that typically, within the final days of the window, you must merely settle for it it doesn’t matter what you want for. It’s the fact.”