West Ham United can confirm Roberto has joined Spanish Primera Division club Deportivo Alaves on loan until the end of the 2019/20 season.
The goalkeeper heads to the Basque country having made ten appearances for the Hammers in all competitions this season – eight in the Premier League and two in the Carabao Cup.
Alaves sit 14th in the La Liga table following a 1-0 win at Levante at the weekend and Roberto could make his debut at home to Villarreal on Saturday evening.
West Ham United wish Roberto all the very best for his loan spell.