Publications
Partners
The 25-year-old, who signed a long-term contract, joins Manchester City's veteran defender Kolo Toure, Sevilla's Luis Alberto and Celta Vigo's Iago Aspas as manager Brendan Rodgers' new recruits since a disappointing season saw them fail to qualify for Europe in finishing seventh and without a trophy.
"I am delighted that we have been able to sign one of the top goalkeepers in the Premier League," Rodgers told the club website.
"Simon will join a club that will give him an opportunity to demonstrate and improve his huge talent."
Mignolet, who played over 100 games for Sunderland since a £2 million move from Belgian side Saint-Truiden in June 2010, could well replace the club's long-time number one Spaniard Pepe Reina, who has been linked with a move to Spanish champions Barcelona.
Rodgers spending is far from over as he has also declared an interest in highly-rated Sporting Lisbon defender Tiago Ilori, 20, and 24-year-old Armenian midfielder Henrikh Mkhitaryan from Ukrainian giants Shakhtar Donetsk.
However, he will face a battle with other clubs to secure the signature of Mkhitaryan, who is valued at £20 million.
