Fulham’s fifth and final Deadline Day deal saw Marseille midfielder Andre-Frank Zambo Anguissa join for a fee Sky Sports News understands to be £22.3m.
The 22-year-old has penned a five-year-deal at Craven Cottage, subject to a work permit being granted.
The signing caps off a busy Deadline Day for the Premier League newcomers, having also signed Sergio Rico, Luciano Vietto and Timothy Fosu-Mensah on loan, and Joe Bryan for £6m.
“I am delighted to have signed for Fulham today. This is a new chapter in my career and one I’m really looking forward to,” Anguissa told the club’s website.
“I hope to bring my qualities to this new project. I like a challenge and I will ensure that I give my very best to my team, the club, and the supporters.”
Anguissa is a Cameroon international, representing his country 11 times since making his debut in March 2017.
He helped Marseille reach the Europa League final last season, while he also made 37 Ligue 1 appearances as the club finished fourth in the table.
It has been a busy summer for Fulham boss Slavisa Jokanovic, who has made a number of key signings after guiding the club back to the top-flight.
Jean Michael Seri, Aleksandar Mitrovic and Alfie Mawson have all arrived for significant fees, while Andre Schurrle and Calum Chambers have also joined the Cottagers on loan.