In this task you are given a short story and a question regarding that story. You must answer the question based on the events of the story. Try to use the same words in the story to answer each question. You should completely answer the question in a short answer. Do not include information that is unnecessary to answer the question.

There was five seconds left to shoot a game-winner. Jack had the ball in his hands. As soon as he was about to shoot, the ref blew his whistle. He said that there is a turn over. The coach called an offensive foul made by my teammate.
Why did He say that there is a turn over?
the coach called an offensive foul made by my teammate.