Don't think you can read much into the changing odds at the bookies. They are just reflecting the fact that there has been a flurry of bets over the past few hours, rather than them having acquired any insider knowledge. Chelsea were the favourites (2/1) for a short period of time a couple of days ago according to Sky Bet. In fact, the odds have been wildly fluctuating over the past few days.
Still not getting my hopes up, although I'd be crazy happy if we signed him. Think of the reaction at the ragcafe if we signed Sanchez and they are left scrapping with Real over Morata! The meltdown would be priceless.