West Ham have signed Ivory Coast winger Maxwel Cornet from Burnley on a five-year contract.
He was the club's top scorer last season, scoring nine goals in 28 appearances as Burnley were relegated from the Premier League.
Prior to joining the Clarets, Cornet spent seven and a half seasons at Lyon, playing 252 games and scoring 51 goals for the Ligue 1 side.
He has won 29 caps for Ivory Coast since making his senior debut in 2017.
Cornet becomes West Ham's fifth addition of the summer following the signings of striker Gianluca Scamacca, defender Nayef Aguerd, midfielder Flynn Downes, and goalkeeper Alphonse Areola.