Before the final wrestling match, Cal listens on his earphones to what he tells his brother is "opera, Italian opera." The piece that he actually listens to is neither opera nor Italian. It is the religious motet "Panis Angelicus," in Latin.
No wrestling coach would permit any of his wrestlers to make a grand solo entrance (with lighting effects and pyrotechnics) or enter a competition wearing a warm-up outfit that wasn't team issued. (Officials might jump all over this, too, especially at the District level.)