Nottingham Forest have signed PSV midfielder Ibrahim Sangare for a fee believed to be around £30m, and striker Divock Origi on loan from AC Milan.
Chelsea winger Callum Hudson-Odoi also joined for a fee of under £5m as Forest made seven signings on deadline day.
Midfielder Nicolas Dominguez signed from Bologna and goalkeeper Odysseas Vlachodimos has arrived from Benfica.
Defender Andrew Omobamidele has joined from Norwich, while Arsenal full-back Nuno Tavares has also signed on loan.
Ivory Coast international Sangare has signed a five-year deal and becomes the club's most-expensive signing, topping the initial £25m paid for Morgan Gibbs-White from Wolves in 2022, though that could eventually rise.