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.
Summerville 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.