All replays from the first round onward are being abolished.
World Athletics president Sebastian Coe's decision to award prize money to Olympic gold medallists was welcomed by athletes but has sparked a backlash from bosses of other sports.It was not just the decision to pay prize money that annoyed Coe's fellow federation chiefs.
The 21-year-old Brit has returned to form but now faces the world No1 in the last eight in Stuttgart