Palmieri became the seventh player recruited by the Hammers in the transfer market this summer.
Chelsea has officially released Italian left-back Emerson Palmieri to fellow English Premier League club West Ham United.
West Ham paid Palmieri £11.7m. The Brazilian bloody player is contracted until June 2026.
Previously, Palmieri was brought in by Chelsea from AS Roma in 2018. However, the 28-year-old player failed to be trusted to appear regularly. He made just 33 Premier League appearances before being loaned out to Lyon last season.
“Personally, from the first day I arrived in England, I’ve always listened to big clubs and I’ve always watched big games and I know the history of West Ham,” Palmieri told the club’s official website.
“The history is very long for this team and when I found out about this interest for sure I said ‘Yeah, let’s go, I want to go there’ and I am here now,” he added.
David Moyes’s squad had a bad start with three consecutive defeats against Man City, Nottingham Forest and Brighton.
Palmieri became the club’s seventh new player from East London following Nayef Aguard, Alphonse Areola, Gianluca Scamacca, Maxwel Cornet, Flynn Downes and Thilo Kehrer.