LONDON, ENGLAND - AUGUST 12:  Christina Manning of the United States; Dawn Harper Nelson of the United States; Pamela Dutkiewicz of Germany; Sally Pearson of Australia; Kendra Harrison of the United States and Nadine Visser of Netherlands in the Women's 100 metres hurdles final during day nine of the 16th IAAF World Athletics Championships London 2017 at The London Stadium on August 12, 2017 in London, United Kingdom.  (Photo by David Ramos/Getty Images)