Arsene Wenger has called on Arsenal to "go at" Manchester City as the Gunners seek a place in the FA Cup final against Chelsea.
Wenger has kept his faith in the three-man defence he trialled in Monday night's 2-1 win at Middlesbrough, returning to tactics he had not used since 1997.
Arsenal's back line will be up against Pep Guardiola's slick City attack - who are well known for the devastating counter-attacks - but Wenger wants his side to be just as forceful on the ball at Wembley.
"What counts is the performance of the players and the team," he told BT Sport.
"The fact that we know how to play here [at Wembley] helps a little bit but overall it is between two teams who are very close.
"We need a strong defensive performance, and have to go at them every time we have the ball.
"It means a lot for us to win, to win every game. We are playing three at the back again."
Wenger's opposite number Guardiola told BT Sport: "I have great memories of Wembley.
"It is important to win any title, of course it will be nice. Both teams work hard and this cup is tough.
"We deserve to be here and to reach the final, but we need a good performance.
"To win titles you need a mental approach. The quality is there in the top six in the Premier League, they are all exceptional. What makes the difference is a mental approach.
"Once you win a title, the next one is achievable."