I can’t be asked to do the full 250 words sorry but to Prevent injury talk about checking the equipment eg the football and the field make sure it’s safe to train on and use and then talk about warming up and how that involves three steps a pulse raiser stretch and a skill related drill to get the body and muscles warmed up so that prevents pulled muscles and dislocations and stuff and then talk about correct clothing and footwear so do they need protective shoes and mouth guards all of that good stuff and then a cool down so a stretch and and yh that’s all I can think of right now but if you waffle and go in depth about it all then you should do ok