Sunderland have signed Costa Rica international winger Jewison Bennette on a four-year deal with the option of an extra year.
Bennette made his international debut last year and moves to Wearside for an undisclosed fee.
"When you see the Stadium of Light, it gives you desire to work hard and give your all," he told the club website.
Manager Alex Neil added: "Our model is to unearth the best young talent and try to develop them, so for everyone it is very exciting.
"We need to be patient and allow him time to acclimatise to a new country and learn the language - he is certainly one for the future.