Cologne - Marco Reus has admitted Borussia Dortmund's Der Klassiker defeat has been playing on his mind, but he is now focussed on helping Germany book their place at UEFA EURO 2016.

Reus could feature in Dublin on Thursday when Joachim Löw’s men step out to face the Republic of Ireland looking for the point they require to stamp their ticket for next summer’s tournament in France.

If Germany manage to do that, it should help ease the pain Reus felt as he and his Dortmund team mates were taken apart 5-1 by FC Bayern München at the Allianz Arena last weekend.

'Can't forget'

"The whole of Sunday was not a good day, no-one can say any differently," said Reus, who came off the bench after 53 minutes with Dortmund already 3-1 down. "Also, I have had better nights than the one from Sunday to Monday. A defeat of that scale, in that manner and in that game... you can't forget that immediately."

Reus' own displays in the shirt of Borussia Mönchengladbach and then Dortmund have lived long in the memory of Bundesliga fans for much happier reasons. Injuries have, however, deprived lovers of the beautiful game the chance to witness the exciting forward in full flight in recent months.

After heartbreakingly missing Germany's glorious 2014 World Cup with an ankle problem, Reus has alternated time on the pitch with spells in the treatment room. After starting the current season with two goals in as many games, a toe fracture sustained in the Matchday 3 win over Hertha Berlin abruptly halted his momentum, and means Reus himself feels Dortmund fans are yet to see the best of him this campaign.

'I expect more'

© gettyimages / Alex Grimm

"It's positive that I had a full pre-season and wasn't injured. Until I broke my toe in the game against Hertha, I was satisfied with my performances," Reus explained in an interview with the DFB's official website. "I was out for three weeks, couldn't put any weight on the foot, and could only do a little upper body work. Then you simply need time to get your rhythm back. And to be honest, the games I have had since then have not been up to what I expect of myself."

The same could be said of Germany's EURO qualifying campaign. With the world champions stumbling to defeat in Poland and drawing at home with Ireland early in Group D, the critics weighed in, casting doubt on whether Löw's men would even make it to the final tournament.

"Honestly, I have never thought of that," insisted Reus, who has featured just twice in the group stage so far. "It was clear to me that, right after the World Cup, we would perhaps have problems from time-to-time in certain games. I always knew the quality in the team. So I was certain that our team would come through a long qualifying campaign. We're simply too good to think anything else."