Speaking to Stewart Gardner, the boss admitted he was missing the camaraderie he enjoyed with colleagues during his epic tenure at Old Trafford, while declaring he has "enjoyed" retirement so far as his recovery from hip surgery seven weeks ago continues.
Sir Alex also spoke about his recent return to the news, following the serialisation of ex-referee Mark Halsey's autobiography. The former United manager took the opportunity to set the record straight about his contact with the official, reminding us that "the football fraternity", not just the Reds, supported Halsey in his cancer battle.
The retired boss said suggestions he had influenced referees were "laughable", pointing out "this is a guy [me] who has the worst record of any manager in the history of English football, fined around a hundred thousand pounds by them [referees], suspended so many times... that's some influence, I must say!"
Watch the video above to see more of what Sir Alex had to say about Rooney and United's start to the season. The interview was first shown in Thursday Focus on MUTV.
Sir Alex's new autobiography will be published on 24 October.