The Cottagers pushed through a deal for the 20-year-old before the extended 7 pm deadline on Thursday.
Fulham beats the Deadline Day by signing Manchester United defender Timothy Fosu-Mensah on a season-long loan.
Fosu-Mensah spent last season on loan at Crystal Palace, where he made 21 appearances in all competitions.
Fosu-Mensah joins Joe Bryan, Luciano Vietto and Sergio Rico in moving to Craven Cottage on Deadline Day, with the Premier League newcomers also “I have a good feeling about the club. It has a nice history, it’s a nice club,” Fosu-Mensah told the club’s website.
“Fulham has a lot of good players, and it’s good for my development to be here. I spoke to the Manager and he gave me a good feeling. I’m happy to be here and I want to keep progressing.”
Fulham boss Slavisa Jokanovic has made a number of key signings this summer after guiding the club back to the top-flight.
Fosu-Mensah joins new arrivers, Jean Michael Seri, Aleksandar Mitrovic and Alfie Mawson