Everton have completed the signing of Richarlison from Watford in a deal which could reportedly be worth up to £50m.

The Brazilian forward has put pen to paper on a five-year deal at Goodison Park, keeping him tied to the Toffees until June 2023.

The move sees Richarlison become Marco Silva's first signing as Everton boss, and the pair know each other well having previously worked together at Watford when Silva brought the 21-year-old to the Premier League.

"I want to have a lot of success with Everton. I think it is going to be important for me here to be with Marco Silva again. I will learn more because I am still learning as a player and I aim to develop and grow here," Richarlison told the club's official website.

"Everton have put their faith in me and I intend to honour this shirt and demonstrate on the pitch why I came here. I've known the manager for a while obviously, so I know how he works.

"I developed really well with him while he was with me at Watford. It was really good working with him and one day I believe he can help me to be selected for Brazil in the full national team. But that is for the future and my present is here with Everton. I want my dreams to become a reality here at one of the biggest clubs in England.

"I want to score more goals, provide more assists for my teammates and help in whichever way is possible. Everyone in the world knows Everton. It is a very big club, one of the biggest in England as I said. I am really happy and honoured to be here."

Silva added: "He is one more player who can help us. He is a good player who will make our team and our squad more competitive. The competition between our players is really important to me. This is what will make us better as a club, always that competition within the squad.

"The player himself is fast, strong, very good technically and he can play in three positions across the front line. He can also score goals. Evertonians will see a player who will be 100% committed to helping our team always."

Richarlison scored five goals in his first 11 Premier League starts, but then failed to score a single top-flight goal from November onwards.