 Complete the following phrase:  Klaudia Siciarz pronounced ; born 15 March 1998 is a Polish athlete specialising in the sprint hurdles. In February 2017 she ran 8.00 seconds in the 60 metres hurdles which was the world U20 record until being broken by Tara Davis with 7.98 the following indoor season. In addition, she won a bronze medal in the 100 metres hurdles at the 