Arsenal have agreed a deal worth up to £67.5 million ($85.8m) to sign Chelsea forward Kai Havertz, sources have told ESPN.

Talks progressed quickly on Wednesday on a deal which Chelsea have indicated is worth £62.5m ($79.4m) plus a further £5m ($6.3m) in performance-related add-ons.

Personal terms are close to being finalised and Havertz is set to become Mikel Arteta's first summer signing as the Gunners seek to progress deals for West Ham midfielder Declan Rice and Ajax defender Jurrien Timber.

ESPN reported on Monday that Havertz had informed the Blues he had no interest in signing a new contract with the club.