Sunderland have signed ex-Atletico Madrid defender Reinildo Mandava on a two-year deal.
The 31-year-old, known simply as Reinildo, was out of contract from the Spanish club at the conclusion of their recent Club World Cup campaign.
He signed for Atletico from Lille in 2022 and made 99 appearances.
"It is a dream come true because it has always been my ambition to play in the Premier League - and I can't wait to play for an historic club like Sunderland," said the Mozambique international.
"I'm excited to meet the team, to fight, and to give everything for the club.