Debutant Nuno Tavares opening his account was a highlight, but Arteta was also pleased with the number of chances we created throughout the 90 minutes.
Arteta told the club's website: "Overall I'm really pleased with the performance. I think we dominated the game, we created so many chances - I counted about eight or 10 clear chances to score - but this game is decided in both boxes.
"We weren't clinical in the opponent's box and we conceded two goals from two corners, which were the only chances they had apart from the counter-attack from our own corner.
"It's much better from the other day and you tell that physically we were already better in the second game, the organisation was better, individually they played better, but I really liked the collective understanding of the game and how we executed a lot of things we've been working on in the training pitch."
On Tavares, he added: "A great debut with his right foot as well! He's only been with us a few days but you can already see his qualities, his physicality and then the quality on the ball that he has. He's integrating with the lads really well, so it's a good start."
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