Arsene Wenger admits he will always question himself as he looks to bring success back to Arsenal.
The Frenchman is facing one of the biggest tests of his 16-year tenure this season following the Gunners' Capital One Cup defeat at Bradford this week on the back of indifferent form in the Barclays Premier League.
"You can only be successful if you question yourself, because the game has become bigger and better. With teams like Chelsea and Man City coming in, I think we have to do what we do even better," Wenger told the website.
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