A super-fast greyhound called Jack is tipped for the top after winning 16 races and smashing four records in the last 12 months. Jack, whose racing name is Barnfield on Air, is one of

the fastest in his field and experts say he’s favourite to win the English Derby in May.

Every morning he tucks into a breakfast of meat soup and sardines on toast. And to keep up to speed, he has a gallop down a track at the bottom of his garden a few times a week. Like most dogs he’s walked everyday — unless it’s raining when he trots on the running machine instead.