Manchester United and Manchester City both won their FA Cup quarter-finals and will now meet each other in the semis.
United knocked out Arsenal, beating them 2-0 with goals from Fabio Da Silva and Wayne Rooney.
City beat Reading 1-0 with this header from Micah Richards in the 74th minute.
City boss Roberto Mancini is confident. He said "We have a good chance to get through to the final. I think that Manchester City is now very close to Manchester United."
The winner of that game will either play Stoke or Bolton. Stoke beat West Ham 2-1. Robert Green couldn't quite keep out this winning shot from Danny Higginbotham.
Bolton saw off Birmingham 3-2, winning the game in the last minute with this header from Lee Chung-Yong. The semis will be played on 16 and 17 April.