Honestly, it depends on the severity of the injury. Can you walk comfortably? Can you put all your weight on it without wincing in pain? These are the questions you have to ask yourself. My brother got really hurt in soccer and tried going back to early and ended up making it worse and had to take like a month off of work because he couldn't stand. Luckily he talked to a personal injury lawyer and was able to get compensation for he missed days, but not everyone can be so lucky.