
Polish Malwina Kopron competes during Women's Hammer Throw Final on Day 4 of the 2017 IAAF World Championships at London Stadium in London, Britain, on Aug. 8, 2017. Malwina Kopron took the bronze medal with 74.76 metres. (Xinhua/Wang Lili)

Polish Malwina Kopron competes during Women's Hammer Throw Final on Day 4 of the 2017 IAAF World Championships at London Stadium in London, Britain, on Aug. 8, 2017. Malwina Kopron took the bronze medal with 74.76 metres. (Xinhua/Wang Lili)