I think players tend to get anxious if they've not really done things properly - like eating, resting or training. If you're fully prepared you've got nothing to worry about - it's just a game of football.
“People who are unable to motivate themselves must be content with mediocrity, no matter how impressive their other talents.”
“The first two missions have some test objectives, some new capabilities that we're going to try to develop on orbit to possibly be used on later flights.”