Chuba Akpom has completed a move to Ajax from Middlesbrough.
The 27-year-old forward was the Championship's top-scorer last season with 28 goals to help Michael Carrick's side finish fourth, reaching the play-offs where they were beaten by Coventry.
Former Arsenal trainee Akpom was in the final year of his contract with Boro, and his switch to the Dutch giants has been confirmed as a £10.5m (€12.3m) deal. Ajax said amount can increase to £12.23m (€14.3m) through variables.
Akpom, voted the Championship player of the year for last season, said on the Middlesbrough website: 'I'd like to thank everyone connected with Boro and especially a big thanks to the fans for the support and love they have given me.
'Last season was full of memories I'll never forget and I will be forever proud. Everyone knows what I think of Michael Carrick, and I'm sure success is just around the corner.
Chuba Akpom has completed his £10.2m move from Championship Middlesbrough to Ajax
The 27-year-old forward was the Championship's top-scorer last season with 28 goals
'For me now, I have an exciting new challenge with one of the biggest clubs in the world, and I can't wait to get started with Ajax.
'I’ll still be following the Boro from afar and wish everyone connected with the club all the very best for the future.'
In an interview with his new club, the Canning Town-born Akpom said 'Hopefully, I can add something to the history', and added 'I can't wait to show what I can do.'
Akpom pledged to follow the Boro from afar after making 82 appearances for them since 2020
Akpom will wear number ten, the same number of Ajax players such as Dusan Tadic, Jari Litmanen and Dennis Bergkamp.
French side Lens and Premier League club Sheffield United were also among those thought to be interested in Akpom's services.
A former Arsenal youth player, Akpom joined Greek side PAOK in 2018 before moving back to the UK to join Middlesbrough in 2020 for £2.75m.
He made 82 appearances for the North-East club and scored 34 goals, including strikes on his debut and on his debut at the Riverside Stadium home of Middlesbrough.