Yesterday was a day when male physicality and the science of movement preoccupied - when you watch Rafa Nadal or Jo-Wilfried Tsonga, you can’t help thinking about the contrasts of grace that achieve the same athletic needs; Nadal the pouncing cheetah, the rich, weighty speed of Tsonga. Thing is, when you watch programmes about the greatness of tennis, they don’t try to persuade you that it’s just as good to watch if you yourself learn to play and get it filmed for the public's delight.