Arsenal boss Unai Emery says he was a feeling "50-50" after their 2-0 Europa League win against Napoli.

Aaron Ramsey and a Kalidou Koulibaly own goal produced the quarterfinal first-leg triumph.

Asked how he felt, Emery said, "50 per cent, because we know the first leg today was very important for us to take a good result and a good feeling, also with our supporters and with this competition. I think we deserved the result. The two halves were very different because in the first half we controlled the ball very well and controlled with our positioning and attacked their box with the players, scoring two goals and some chances more.

"We didn't concede a lot for them, only the one chance they earned in the first half. The second was different for us because they took more control with the ball and had more possession, but our transition also was very good. We didn't score but we created three very good chances. We only conceded one chance for them. I think it's a good result but we know it's going to be very difficult because our performances at home have usually been very strong.

"They're going to use their possibilities and attacking options against us for a comeback. Our objective now is to continue being competitive like we are here, away with our gameplay for the next matches."

He added: "It's 50/50. The result doesn't change the idea I had before the match. It's 50/50 - the result is a good result and can give us some advantage, but playing away, I know continuing with the same 50/50 for each team."