The 21 year-old Germany international has dazzled in the Bundesliga and could follow a similar path to that taken by Timo Werner, who left RB Leipzig at the end of the German football season to move to Stamford Bridge.

Reports have claimed there is firm interest from Chelsea but that Leverkusen its holding out for a fee of around £90million for the young star.

Havertz's team-mate Nadiem Amiri said the Leverkusen players are letting the winger go about his business without being pestered about more transfer talk.

"We don't want to talk about it at all. In the dressing room we are very relaxed," Amiri said. "Nobody would go there and speak to him and ask: 'What are you doing now?'

"The boy can handle that himself."

Amiri said there would always be "a few jokes" and stressed he hopes Havertz "makes the right decision" about his future.

"But we need Kai!" he added. "We must leave his head alone."