Everton's director of football Kevin Thelwell has heralded Amadou Onana as "one of the most-after young midfielders in Europe" as he welcomed the 20-year-old to Merseyside.
Onana's arrival was confirmed on Tuesday afternoon as the Blues signed off on a deal with French side Lille worth in excess of £30m. The move followed the Belgium international's appearance in the stands at Goodison Park on Saturday, when he posed for pictures with supporters during the game with Chelsea.
He is the fifth signing of the summer for Everton, following James Tarkowski, Ruben Vinagre, Dwight McNeil and Conor Coady.