Passage: Ivanovic was born in Belgrade, SFR Yugoslavia. Her mother Dragana, a lawyer, has been court-side during most of her matches. Her father Miroslav, a self-employed businessman, attended as many events as he possibly could. Ivanovic has a younger brother, Miloš, with whom she loved to play basketball.Ivanovic first picked up a racket at the age of five after watching Monica Seles, a fellow Yugoslav, on television. She started her career after memorizing the telephone number of a local tennis clinic from an advertisement. During the NATO bombing of Yugoslavia, she was forced to train during the morning to avoid bombardments. Later, she admitted that she trained in an abandoned swimming pool in the winter, as no tennis facilities were available. At 13 she moved to train in Basel, Switzerland, because of the better training facilities and coaching. Manager Dan Holzmann was living in Basel, and Ana and her mother stayed with him until they could afford an apartment. When she was 15, Ivanovic spent four hours in a locker room crying after a defeat – the first that her new manager had witnessed. She thought that Dan Holzmann would abandon her, thinking she wouldn't be good enough to become a professional tennis player. However, he remained her manager throughout her career.

Question: What did Ivanovic have to do to avoid the strikes when NATO bombed Yugoslavia?
train