Hi Mondo. My main Sigma lens for sport is the excellent 120-400mm, not the 200mm. It is quite heavy and after a while you sure know you've got it round your neck. At full stretch it is quite long, but the results are worth any inconvenience. Used lenses are a good option too, check out the used sections from reputable dealers like Mifsuds, Warehouse Express, and Park Cameras. At least you should get a warranty when buying from these dealers. Important to remember is to use a fast shutter speed with zoom lenses, to get a sharp pic. A rule of thumb is this; if using a 300mm lens, never shoot any slower than 1/300sec. A 400mm, use 1/400sec, and so on, get the idea?. All the best, Mike.