A lot of small bets will see the odds shortening dramatically,as in the case of Weir,Stubbs and Neville.
Then I find it strange that Pereira isn't a short favourite given lots of us on here must have had a plunge? We think he's got a choice between us and staying at Porto and he is reported as wanting to come to England and having been in London for a meeting earlier in the week. Even if these assumptions are wrong it doesn't change the fact that we think they're correct and so surely plenty of cash should have been bet on him.