Chelsea supporters have taken to social media after noticing Kai Havertz's reaction to a post on Instagram announcing Timo Werner's transfer.
The Blues have confirmed that a deal has been agreed to sign the RB Leipzig striker, after activating his £47.5million release clause.
Werner will remain at the Bundesliga club until the end of the German league season, before linking up with his new teammates next month.
The Germany international becomes Chelsea's second major summer signing after a deal to sign Hakim Ziyech from Aiax was already confirmed in February.
But Chelsea are reportedly not done yet, with further additions linked with a move to west London, including Bayer Leverkusen's Kai Havertz.