Michael Keane completed his move from Burnley for a fee that could rise to a Club record-equalling £30million in July 2017.
The England defender penned a five-year deal at Goodison Park.
Keane came through the ranks at Manchester United and signed his first professional contract with the Red Devils on his 18th birthday.
He made his first-team debut for the Red Devils in the League Cup against Aldershot Town the same year (2011) and after several more appearances in the competition, and productive loan spells with Leicester City, Derby County and Blackburn Rovers, made his Premier League bow as a 43rd-minute substitute in a 1-1 draw with Sunderland in August 2014.