Despite having a plethora of midfielders at his disposal, Wenger insists he couldn't turn down the chance to sign Ozil.
"You have to look at the quality first and when you have high expectation levels you can't turn down a world-class player," said Wenger.
"There was no special emptiness in that position but the quality was so big it was too difficult to say no. I believe what is important is what you see when a team plays, the rest you have to cope with.
"Look at Bayern [Munich] the other night, they have [Javi] Martinez and [Mario] Goetze on the bench.
"People said the team cost £92 million and Man City cost £190 million, but Bayern had over £100 million on the bench. That's part of big clubs today, having big players on the bench."
For breaking stories and all the great banter like us on Facebook: facebook.com/tribalfootball