Arteta says sometimes fatigue can be a mental battle.
“That is why if you say: 'I'm fatigued, I cannot do it' – no, of course you can do it," he said.
“There are things and professions that are much harder than ours where people keep on going and going – when someone is running a marathon and chasing somebody.
“There are so many good examples we can use so fatigue is a lot of times mental, because if things go well and you score a goal, I'm sure you will still have the energy to sprint and celebrate that goal.
“But when you have to track someone back, you say you're tired? I don't really agree with that, if you are on that pitch – until you are absolutely done – you have to give your best."