Kai Havertz to Chelsea is one of the big talking points of the summer transfer window.
The German frontman has been continually linked with a move to Stamford Bridge this summer, although Leverkusen and the Blues have yet to come to an agreement over a price.
Leverkusen are holding out for around £90million, with Chelsea eyeing up a £70million deal to become Lampard’s third summer signing.
But Lampard and Chelsea have been handed a warning over the transfer that Havertz may not be ready for the Premier League.
With that in mind, here is a round-up of everything we know so far about the Blues’ pursuit of the 21-year-old and what the very latest developments are.