The Gunners managed to beat United 2-1 at Emirates Stadium last November and Toure insists he is fearless ahead of the clash at Old Trafford.
“For me I am not scared of any team. I know what I have to do when I play,” said the Ivorian.
“There is more pressure on United because they are the team to beat.
“United are the ones who won it last season, but for us we are going there to do the best we can playing free and passing the ball.
“We know when we play football against Manchester United, they struggle a lot.”
Toure continued: “United are a really good team going forward, but, like us, at the back they have conceded a few goals.
“We have the same type of team – we both like to play, but sometimes you can be caught out at the back.
“The team that will win will be the one which defends the best. It is going to be a really big fight.”
