Sebastian Coates is looking forward to working under Dick Advocaat again after signing a four-year deal at Sunderland.
The Uruguayan international, who will return to Wearside next week, has completed his permanent move from Liverpool, having spent last year on loan at the Stadium of Light.
The 24-year-old South American played a key role in Dick Advocaat’s nine games in charge at the end of last season, helping Sunderland achieve a haul of nine points and three clean sheets.
And he said he is pleased to be joining a “great team”.
“I’m really happy to be here,” Coates told the club’s website.
“I will try to improve on last season and hopefully the team will too.”
Coates played every minute of Sunderland’s five-game unbeaten run that secured the club’s Barclays Premier League status.
He wants to see them carry that form into the new campaign.
Coates added: “Hopefully we’ll continue how we played how we finished.
“For me, I played really well at the end of last season and the team did as well so I hope we can be good this year.
“I’m fit so I’m hoping to get more games.
“I will give my best in every training session to stay at my best for the games.”
The fee for the Uruguayan international is understood to be in the region of £2m, as previously reported by the Echo.
Coates, who spent the 2014-15 season on loan at the Stadium of Light, joins the club on a four-year deal.
The central defender has spent the summer on international duty with Uruguay at the Copa America.