Mohamed Al Fayed has sold Fulham – the club he has owned for 16 years – to Shahid Khan, the owner of the NFL side Jacksonville Jaguars.
The deal has been valued at up to €230m and makes Kahn the sixth American to take control of a Premier League club.
Fayed took Fulham from the third tier of English football to the Premier League and into Europe.
"It has been a pleasure and privilege to be chairman of Fulham football club for 16 memorable years," Fayed said to the BBC.
Khan, who made his money as a car-parts entrepreneur, said of the deal:
“Fulham is the perfect club at the perfect time for me. I want to be clear, I do not view myself so much as the owner of Fulham, but a custodian of the club on behalf of its fans," he said.
"My priority is to ensure the club and Craven Cottage each have a viable and sustainable Premier League future that fans of present and future generations can be proud of.
"We will manage the club's financial and operational affairs with prudence and care, with youth development and community programmes as fundamentally important elements of Fulham's future."