There's a reason none of the mainstream media are talking about Messi joining City, or anyone else. It's not happening. The best player in the world is currently out of contract and its barely even newsworthy.
If it was this time last year I think we would have signed him, but we've moved on and he's aged another year. Yes, he's still one of the best in the world and I'd have loved him at City even for a season, but some thing aren't meant to be and we managed to do alright without him last year.