One of the greatest sports figures of all time at last breaks his silence in a memoir as unique as the man himself. Number 4.It is just about the most common number in hockey, but invoke that number and you can only be talking about one player — the man often referred to as the greatest ever to play the game: Bobby Orr. From 1966 through the mid-70s he could change a game just by stepping on the ice.Orr could do things that others simply couldn't, and while teammates and opponents alike scrambled to keep up, at times they could do little more than stop and watch. Many of his records still stand today and he remains the gold standard by which all other players are judged. Mention his name to any hockey fan or to anyone in New England and a look of awe will appear.