Casemiro has admitted Manchester United need to spend big again this summer to have any chance of catching local rivals Manchester City.
The two sides meet in the first all-Manchester FA Cup final at Wembley on Saturday, with United looking to win to wreck City's hopes of emulating their Treble. United have made progress in Erik ten Hag 's first season, finishing third in the Premier League, winning the Carabao Cup and reaching the FA Cup final.
Despite that improvement, United still finished 14 points behind champions City, with £70million Casemiro claiming they need to sign more world-class stars to bridge that gap. United, who spent £208m last summer, have been linked with moves for Harry Kane, Declan Rice, Mason Mount and James Maddison.