But the 46-year-old former Paris St Germain boss is looking forward to taking on fellow Spaniard Pep Guardiola in his Gunners bow.
“We are excited,” he said.
“We have a lot of ambition to start well on Sunday against the last winners of the Premier League. Also, I think that it’s a big and great match that we can play to start this season.
“It’s more easy to speak here than to do it on the pitch. City, I think, after two years of working with Guardiola they have more stability, more security and when you watch City’s matches, they are playing with a very, very great confidence in themselves.”