Last updated on .From the section Chelsea
The signing of the England forward from Manchester City was confirmed by the London club.
The man has signed a five-year contract.
In 2015, City signed a £49m contract with a player. He went on to win four league titles.
Since the Todd Boehly-led takeover, only one major signing has been made by Thomas Tuchel.
"I've achieved a lot in my career so far, but there is still so much more to achieve and I'm really looking forward to doing that under Thomas' management."
It's amazing that I now have the chance to play in front of friends and family week in, week out at Stamford Bridge, because London is where it all began for me. I'm excited to meet the fans there.
The rest of the squad left for the United States on Saturday.
Earlier in the day, he posted a goodbye message saying he was leaving City as a man.
Boehly said that his signing is an important step in bolstering the squad. We are looking forward to seeing the world class talent of Raheem when he returns to London with the Blues.
There's more to come.