“Did I know everything about the role? Did I know everything to expect? Absolutely not. I have to admit it,” Mertesacker said at the time.
“I thought this is a great club with great people who have been magnificent in nurturing young talent into the first team, so I expected that I would have colleagues in the academy that would be fantastic to me and would welcome me.
“I expected good people to work with. Two years into the role now, did I expect what I was going into? Absolutely not. Am I glad to have made the decision to stay with the club? Absolutely yes.
“Do I like my job? Do I like to be part of the Arsenal Academy and lead it? Best decision ever!”