West Ham have confirmed the signing of Boavista defender Gonçalo Cardoso on a five-year deal.
The highly-rated 18-year-old defender has moved to the London Stadium for an undisclosed fee, having made his breakthrough at first team level last season.
The Hammers took to their official website to confirm the deal, with the teenager expressing his delight at moving to England.
He said: "I am very excited and it’s a dream come true. I always dreamt of coming to England and now I’m here at this big, historic club, so I’m very happy.
"I’m an aggressive player, a little bit different on the pitch than off it.