My son is a soccer, so every Saturday I shoot him on the field: I use a Nikkor 70 300 VR: it’s a very good lens, versatile with high quality. The focus speed is fast and accurate. VR is a very good tool to limit shakes. Yesterday, I went to a motocross race: I used it with my new D800: the results are great! This lens is very good for outside sports. Inside, you may be limited with the maximum aperture if the light is weak. But if you want that kind of lens with wide aperture, the price is not the same..