One way to chase the butterflies away is by being ready to play. Try to attend all your team's practices. By practicing, you'll improve your playing skills and your team will learn how to work together. In some ways, playing a sport is like learning a part in a school play or how to play the piano - the more prepared you are, the better you'll feel and the more fun you'll have. Try taking a few deep breaths to help you relax right before the game.
Some teams have a group cheer or huddle before heading onto the field.
Let the tension you feel before the game melt into excitement with the first play. For specific medical advice, diagnoses, and treatment, consult your doctor.