Wenger is expecting great things from Rosicky

He said: "It was a very physical game. Sparta played with a total commitment in the first half and stopped us from playing. We needed to be patient.

"We needed more purpose going forward and did that more in the second half.

"The whole team has a resilience, they fight to the last second. I am very pleased with the result."

Interview: Arsenal boss Arsene Wenger

However, Wenger warned: "At 2-0 we are not qualified. We know we have to keep on our toes.

"But the second goal was certainly a mental blow for them."

606: DEBATE I have a feeling that when Arsenal finally hit form they will be irresistible HighburyRIP

Goalkeeper Jens Lehmann - guilty of a terrible blunder against Fulham on Sunday - produced some fine saves and it was his quick throw which set full-back Bacary Sagna away for the injury-time goal.

Wenger said: "I feel against Fulham, he made a big mistake in first minute after he had a good performance and showed mental strength.

"Today had great saves and was very influential on the second goal we scored as well."

Sparta coach Michal Bilek felt his side had deserved more.

He said: "It was very unlucky for us in the end. I cannot say that any of the players were bad - they were great.

"Unfortunately we made two mistakes, and did not react quick enough. We created chances, but failed to score.

"So overall, although it was a great performance, we were disappointed with the result.

"We have lost 2-0 and that speaks for itself. There is still the game at the Emirates Stadium, and we will try to put on a good performance. but getting through would really be a great surprise."