I had some remaining uncooked chicken thighs and drumsticks in the fridge which I've now thrown. Sell by date was 1st July and they smelt fairly rank today when sniffing them up close. It was only one thigh and one drumstick, I cooked the other two pieces on the day I bought them. Can you go past the sell by date by a day or two? I suppose it sounds like a pretty obvious answer but is smell always an indicator that you simply mustn't eat something? Perhaps once they're grilled they might still be ok? Uncooked chicken always smells a bit rank to me a day after the package has been opened anyway.