England international Jack Wilshere has completed his free transfer to West Ham.
Although Manuel Pellegrini's first match ended with West Ham falling to defeat in Switzerland on Sunday, there was better news for supporters on the transfer front.
West Ham's pre-season got off to a disappointing start with defeat against Swiss lower tier side FC Winterthur.
A spokesman for Borussia Dortmund has confirmed that the German club are prepared to sell wide man Andriy Yarmolenko to West Ham United.
West Ham United's first pre-season friendly is being broadcast live on YouTube on Sunday lunchtime.
West Ham United will face Bundesliga outfit FSV Mainz in this year's annual Betway Cup encounter, as they bid to win the trophy for the first time.
The prospect of Dimitri Payet playing in a West Ham shirt once more has split West Ham United supporters.
Manuel Pellegrini's latest capture is set to join up with his new team mates at their Swiss training camp after completing his medical.
West Ham United's opening game of the 2018/19 season has been postponed by 24 hours at the behest of broadcasters.
West Ham United's former Head of Recruitment, Tony Henry, has been banned from football for a year following derogatory comments he made regarding African players.