The Morocco worldwide, 26, who spent two seasons with the French Ligue 1 membership, has signed a 5-yr agreement with David Moyes' side. "I became without a doubt excited when I heard about West Ham United's hobby," said the left-sided player.
"When I heard about it, I knew I had to visit the Premier League, as it's a dream for every participant. West Ham is a ancient club. I noticed some in their video games this year, and I saw the enthusiasts and the atmosphere were incredible."
Moyes, whose side completed 7th within the Premier League closing season, said Aguerd had been at the membership's radar for some time.
"I am thrilled to welcome Nayef to West Ham United," stated the Hammers supervisor. "We have tracked his development for a while and I'm very thrilled that we were able to complete the signing. He's a terrific addition so that it will add to our protective alternatives."