Arsenal defender David Luiz was delighted with their mature win against Olympiacos.

The Gunners won 1-0 away from home in the first leg of their round of 32 clash in the Europa League against the Greek side.

And Luiz knows they must continue to show such a mentality if they are to go far in the competition.

He told the club website on the win: "It was a good result for us. It's so difficult to play here against an amazing team with an amazing coach, amazing atmosphere. It was difficult but I think we played a mature game where we tried not to concede and we knew when we had to defend."

On the opposition, he said: "They are a good team. They did well in the Champions League against amazing teams and they showed tonight that they have great ideas in football. But we played a humble game, a mature game, and understood that we needed to defend as a team. It's a good result but it's not finished yet."

He believed the Gunners were worthy winners, saying: "It's fair. They started well for the first 15 minutes but we played better after that and created more clear chances than them."

And on the manager Mikel Arteta's half time team talk, he said: "We just tried to understand what happened in the first half. This picture of understanding the first half is much better when you have the humility to learn and try to change things in the second half."