Everton's Brazilian forward Richarlison has signed a contract extension until 2024 with the English Premier League club.
The 22-year-old joined from Watford for a fee of around STG 40 million ($A76 million) pounds as manager Marco Silva's first Everton recruit in July 2018 and has scored 20 goals for the club in all competitions.
"I intend to be here a long time," Richarlison, who has earned 19 caps for Brazil, told the club's website.
"This was the club which gave me the opportunity to show my football.
"It was here I managed to get a place in the Brazil national team and it was here I have scored lots of goals in the Premier League... now it's time to continue the focus and to make the fans happy."
Richarlison's extended deal will come as a boost to struggling Everton before the Merseyside derby with Premier League leaders Liverpool at Anfield on Wednesday.
Silva is under pressure following a string of poor results that leaves the club hovering just about the relegation zone.
But Richarlison said: "He has my trust and the trust of the whole group.
"It's us on the pitch and we are looking to help him as much as possible because Marco Silva is an excellent person."