DOHA, QATAR - OCTOBER 6: Malgorzata Holub-Kowalik (Poland) in Women's 4x400 metres relay final during day ten of the 17th IAAF World Athletics Championships Doha 2019 at Khalifa International Stadium on October 6, 2019 in Doha, Qatar (Photo by Nassos Triantafyllou/AZ Sports Images)