Brighton sign Dutch midfielder Wieffer from Feyenoord on five-year deal
The 24-year-old midfielder has signed for an undisclosed fee, but local media have reported the deal is worth £25 million.
"We are delighted to welcome Mats to the club, a player whose qualities we have admired for a long time. He has a lot of Champions League and Eredivisie experience and has developed into one of the best deep-lying midfielders in Europe," said technical director David Weir in a statement.
Wieffer joined Feyenoord in 2022, scored nine goals and provided 11 assists in 79 appearances for the Eredivisie club.
He has made nine appearances for the Netherlands, scoring his first international goal in a 6-0 win over Gibraltar in the second leg last November.