Arsenal manager Arsene Wenger says last night's FA Cup win at Old Trafford will boost his squad's confidence.
The Gunners produced a solid display against Manchester United to reach the next round of the FA Cup.
And they will be strong favourites when they take on either Reading or Bradford City at Wembley.
"Last year we played a tricky game at Wembley in the semi-final and we expect that again," Wenger said.
"Tonight I thought we played well and deserved to win the game.
"We had to start without apprehension and play at a a high pace and we did that well. Danny Welbeck, I believe is just happy to score. He worked extremely hard today and deserved his goal.
"We live in the real world and want to compete in every competition.
"This result can give us good morale for the Premier League and the game in Monaco."
