On Sunday, there was a draw for the FA Cup semifinal.
While Brighton will take on Manchester United, Manchester City will play Sheffield United.
Six-time champions City, defeated Burnley 6-0 on Saturday to go to the round of four.
On Sunday, the Blades defeated Blackburn 3-2 to secure their place.
With a 5-0 victory, Brighton put an end to League Two Grimsby's unlikely run to the semifinals.
Wembley Stadium will host both semifinal matches over the weekend of April 22–23.