Whistle! is about a boy named Shō Kazamatsuri. He transfers from Musashinomori School to Sakura Josui junior High School for better hopes to make the soccer team, since he never got a game at his old school due to his small stature. Yūko Katori, his teacher, introduces him as a former star of the famed Musashinomori team, causing his classmates to be wrongly ecstatic. Right after that, one of the players, Tatsuya Mizuno, reveals that he was never a regular. In other words, since he never got the chance to play, Shō is a poor player. Shō struggles to improve his skill so he can make the team at his new school and to ignore the drastic disadvantage he has due to his height.
Taken from: wikipedia
This anime is a must see for all Filipino who love sport anime like hungry heart or captain tsubasa.