Everyone loves a trier, especially when it comes to putting down your readies. There's nothing more galling for punters than to realise that your selection was 'not off' and that you've not even had a fair run for your money.

Blanket television coverage and the greater transparency of the betting exchanges have raised awareness of the 'non-trier' issue in horse racing, but football punters need to be on their guard too. It's clear that all is not well in the world of football, judging by the recent match-fixing scandal in Germany involving referee Robert Hoyzer, ongoing investigations into some Italian results and irregular betting patterns on obscure European and international matches.