The club also confirmed that Andre Gomes will join the Toffees on a season-long loan.
The former England manager hailed the club hierarchy for the "hard work" done in recruiting players in the transfer window.
Real: Après l'arrivée de Courtois, Keylor Navas tranche sur son avenir
Quelques heures après le transfert de Thibaut Courtois au Real Madrid , Mateo Kovacic a fait le chemin inverse , jeudi. Cette transaction devrait ouvrir la voie à la signature du gardien Kepa Arrizabalaga (Athletic Bilbao).
"I'm very happy to come to the club and sign". "I'm excited to start to train and above all enjoy a season that starts on Saturday". "I hope to do as well as possible".
Argentina worldwide Federico FERNANDEZ has made the switch and joined Newcastle United.
Fosu-Mensah has struggled to break into United's first team, despite being with the club since 2014 and with opportunities limited for the versatile defender, loan moves have seemed the best way for him to gain Premier League experience.
In the 2016/17 campaign, Vietto played for Sevilla and past year he played the second half of the season for Valencia. FERNANDEZ, now 29 years old, played 30 times for his club last season but couldn't prevent them from being relegated to the Championship.