Dani Ceballos has credited Unai Emery with playing a massive role in him signing for Arsenal.
The Real Madrid midfielder has moved to North London on a season-long loan deal.
"The coach was the turning point in terms of me joining this massive club," Ceballos told the club's website.
"He's a Spanish coach and he knows me from my time at other clubs. I'm really happy to be able to help Arsenal achieve our objectives.
"I knew I had the confidence of the coach, which was very important for me from the start.
"I was aware of the responsibility that wearing this shirt entails and it was a tremendously proud moment when I decided to join Arsenal.
"He's a very tactical coach and I think that's going to really help me to perfect my positioning. I think we're both going to try our best to make me a better player."
