
Havertz has been one of the top performers since Bundesliga’s restart, scoring five times in four games.
However, the Blues will have to ward off interest from top European clubs including Bayern Munich and Real Madrid if they are to secure the young German’s signature.
Blues manager Frank Lampard wants to replace aging wide stars Willian and Pedro this summer and Havertz has been identified as a key target to do the same.
He can play across the front line and in behind the striker as a number 10 and is touted for his clever movement and deadly finishing.
Bayer’s sporting director Simon Rolfes said: ‘We don’t know yet what will happen to Kai.
‘We know that all the great clubs from Germany and Europe are after him and that he has the ability to play anywhere.’
Kepa has had a dreadful season and played second fiddle to Willy Caballero in early 2020 but started the last few games before the lockdown break.
Pulling off the signing of both Werner and Havertz would be a major addition on part of owner Roman Abramovic and will force Chelsea back into the conversation for the Premier League title.