The English Premier League football club West Ham United have signed Diego Poyet, son of Sunderland manager Gus, from Championship side Charlton Athletic on a four-year-deal.
19-year-old Poyet becomes the club's fourth off-season signing following the arrivals of Argentine striker Mauro Zarate, Senegal midfielder Cheikhou Kouyate and defender Aaron Cresswell.
The Spanish-born midfielder represented England at under-17 level and was second-tier Charlton's player of the year last season despite not making his debut until January.
