London - Borussia Dortmund may have grabbed the headlines after their UEFA Champions League victory over Real Madrid in midweek, but no less important was FC Schalke 04’s impressive 2-0 victory away at Arsenal.

Huub Stevens’ team showed real maturity, belying the side's average age of just 24.3 years, to produce a performance full of discipline, invention and with the necessary thrust to keep a talented Arsenal side at arm’s length.

Key to their rhythm was the intelligent wing-play of Peruvian international , who had the beating of Arsenal defender Andre Santos time and again and provided the assist for Ibrahim Afellay’s decisive goal four minutes from time. Aged just 27 but a veteran of 47 games in Europe’s premier club competition, Farfan spoke to bundesliga.com after the game about just how good his team’s current form is.

bundesliga.com: On Friday you'll be celebrating your 28th birthday. Was the 2-0 success against Arsenal at the Emirates Stadium an early birthday present?

Farfan:(laughs) It was definitely a great victory for us. We put in an excellent performance and fully deserved the win. Now the important thing is for us to build on that in the next few matches.

bundesliga.com: This was Arsenal’s first defeat at home in the competition against German opposition. Does that make you that little bit prouder?

Farfan: Of course we can be proud of that. There’s a first time for everything in football and this happened to be one of those days.

bundesliga.com: What was the key to winning this match?

Farfan: We were totally focused from the very first whistle. In the first half we didn’t create that many chances, but in the second period we moved the ball around much better. That was how we were able to get into those dangerous positions that eventually led to us scoring the goals.

bundesliga.com: It seems as though nothing can stop Schalke at the moment...

Farfan: Our confidence has obviously improved a lot after the win in Dortmund. We're just in great form right now and we want to make the fans happy, as well as ourselves.

bundesliga.com: With two home games still to come, can you now begin talking about the knockout stages?

Farfan: That would be looking too far ahead and that’s a risky thing to do because we have to win our next few matches first.

bundesliga.com: The season is going very well for you with just one defeat so far. What can Schalke still improve upon?

Farfan: We know the quality we possess in our squad and at the moment we’re playing at a very high level. We just have to play to our potential and carry on this winning run.

bundesliga.com: For example, against 1. FC Nuremberg this weekend?

Farfan: Yes, absolutely. After two away games, taking three points at home against Nuremberg would be the perfect way to round off the last seven days.

Michael Reis reporting from the Emirates Stadium