West Ham have signed Dutch forward Crysencio Summerville from Leeds for a fee in excess of £25m plus add-ons.
The 22-year-old has agreed a five-year deal at London Stadium with the option of a further year.
“It’s the perfect next step for my career,” said Summerville. “I’m here to help write more history and I’d love to help West Ham get back into Europe.”
He made 89 appearances and scored 25 goals in all competitions for Leeds after joining them from Feyenoord in a £1.3m transfer in 2020.
West Ham are also close to sealing a £27m deal for Germany striker Niclas Fullkrug from Borussia Dortmund.
The Hammers have been linked with numerous players this summer as technical director Tim Steidten attempts to strengthen Julen Lopetegui’s squad.
However, Summerville – last term’s Championship Player of the Year – emerged as one of their primary targets.