Kai Havertz will not leave Bayer Leverkusen before their Europa League journey comes to an end next month, claims club director Rudi Voller.
The 21-year-old is now Chelsea's top target this summer following the arrivals of Hakim Ziyech and Timo Werner, with a £90m move in the pipelines.
However, with Bayer taking a 3-1 lead into their Europa League last-16 second-leg against Rangers on August 6, former German international Voller insists their prized asset will be available throughout their European run in August.
When asked whether Havertz would be availaable, Voller told German outlet Kicker: 'It is set in stone.'
'There is no new stance.'
In addition, Voller says Frank Lampard's side will have to pay Havertz's full value if they want to buy the German this summer.
'There will be no corona bonus,' he said, before admitting: 'No matter who the player is, this is a special transfer window.'