the rapid tymal mills has long been restricted to short form twenty20 cricket because of his back. brutal business, contorting the human frame into unnatural positions, forcing many times the body weight through them at impact. at university they work with the england and wales cricket board to better understand the biomechanics of bowling and try to find ways of minimising the risks. one of the real big learnings| of the years is understanding how bone operates. bone is a living tissue. sojust like you trainl your muscles, you go to the gym, you also - train your bones as well. that is part and parcel with fast bowling. - you can bowl too - much or not enough. and there is an optimum - where if you go over the edge, you are much more prone to getting injured. - so workload is a big factor as well. - archer's specific case will require careful treatment, but england haven't given up on him. for inspiration, there is alwastimmy anderson. 41 this summer, and despite a groin strain, expected to be fit for yet another ashes battle. world number one novak djokovic criticised the british