Watford have completed the transfer of young Portuguese midfielder Domingos Quina from London rivals West Ham United.
The Portugal U-20 international moves to Vicarage Road after the two clubs agreed an undisclosed transfer fee for him.
He has signed a four-year contract with the Hornets.
The 18-year-old made his first-team debut for West Ham United in July 2016 during their UEFA Europa League (UEL) clash with Slovenian side Domzale.
Domingos Quina played a prominent role as helped Portugal win last month’s Under-19 European Championships.
His performances at the tournament was enough to convince the Hornets and the club moved swiftly to add him to their ranks on deadline day.