Football is very different because you don't have to spend as much time. Professional players train for 1-3 hours per day and that's it. The remaining time of the day they do nothing at all because there's no point to physically exert yourself more, you'll just get injured for no benefit. Also, you have to be 100% rested when game time comes which means that 2-3 days prior to the game you take it very easy during training, or even don't train at all.