West Ham have signed Ivory Coast winger Maxwel Cornet from Burnley on a five-year contract for an undisclosed fee after paying his £17.5m release clause.
The 25-year-old arrived at Turf Moor from Lyon last August for £12.85m.
Cornet, who can play as a left-winger, wing-back or full-back, has a further one-year option on his contract.
"It's a new step for me to join this big club and I'm really happy to be here, to be part of the project for the club. I'm just excited to start," said Cornet, who has scored six goals in 29 appearances for Ivory Coast.
"Everyone knows the level here in the Premier League is very high and I want to play here for that, so I'm really happy to be here for the next stage in my career."
"He made a big impact with his performances for Burnley last season and he has impressed me with his desire to improve and challenge himself further here at West Ham."
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