USA white jersey The 18-year-old has been at Goodison Park since the age of seven and made his senior debut in the Europa League clash with Krasnodar towards the end of 2014.
spain red jersey Dowell was sidelined for the first half of the 2015/16 season with an ankle ligament injury but he impressed for Everton's U21 side on his return, scoring 11 goals.
mexico green jersey He made his Premier League debut at the end of April against Bournemouth and, before the campaign ended, started for the first time against Norwich.
"It's a huge day for me and I'm delighted," Dowell told Everton TV.
England white shirt "I found out it might happen at the end of the season, then I've come back from a holiday and it was all ready to be sorted.
argentina home shirt "You could say it's just the beginning. All the work you put in during your time with the Academy is towards getting your first professional contract, but this really makes me feel like part of the team.
France blue shirt "At moments like this, whether it's signing a contract or making your first appearances for the club, you look back and wonder if you'd be here without your family, friends and especially the staff here. I can't thank them enough for everything they've all done for me so far."
