When your team movies up from Under8 to Under-9, there are alot of changes to the game. There is the additional of the Off Side rule, the additional of a second box, or the larger panalty area as well as the addition of direct kicks and even penalty kicks. With all these changes coming at once, it is best to start training early in order for your team to be ready to play in U-9 effectively. I have added a nice video explaining the offside rule and will be adding more information on the other changes as well.