Aaron Ramsey says he and his Arsenal team mates have no fear of facing the Premier League champions at Old Trafford, insisting they have what it takes to stay at the top of the table.
Arsene Wenger's men took another massive step in their bid to reintroduce themselves as one of the elites of world football by beating Borussia Dortmund at the Westfalenstadion.
Their 1-0 win - the first time an English team has won in Dortmund's famous stadium - took Arsenal to 14 wins in their last 15 away games in all competitions.
Ramsey, scoring his 11th of the season, netted the winner in the second half and has now set his sights on beating last season's Premier League champions Manchester United at Old Trafford.
The Gunners haven't taken all three points away from the Theatre of Dreams was in 2006, when Emmanuel Adebayor netted a late winner and Ramsey wants the seven year drought to come to an end.
"They have had a few good results in the League and will be getting their confidence back up but we are really confident ourselves.
"Our away record has been really good so hopefully we can continue building on that.
"We learned from the first game against Dortmund [when Arsenal lost 2-1 to a late Robert Lewandowski goal]. We were caught on the counter-attack, even though we were quite dominant at that stage of the game.
“We came here and defended well as a team. I think we restricted them to long-range efforts and we did what they did to us the other day — caught us on the counter-attack and put the ball in the back of the net. We are delighted with the result.
“Dortmund is a difficult place to come. This is the Champions League, where all the best players in the world play. It was no easy task to come here and get the win.
We will take an enormous amount of confidence from that and hopefully that will put us in a good position now to kick on and have a really successful season.”
Arsenal's title credentials have been written off more than once this season and was most recently the subject of conversation for Wayne Rooney, who hinted that Arsenal aren't strong enough to maintain their good form for the whole season.
However, Ramsey believes Arsenal have the ability to keep their run going.
“We take every game as it comes,” he said. “We had a fantastic run-in to last season and after the disappointing opening game of the season, we have managed to build on that and keep it going. Hopefully, we can do that up until Christmas and then we know we have the ability to compete.”
Manchester United and Arsenal play this Sunday at 16:00 GMT.