The world's best athletes will take to the track and field this weekend when the World Athletics Championships get under way in Tokyo from September 13-21.
Many of the stars who shone at Paris 2024 will be there, including Britain's 800m Olympic champion Keely Hodgkinson and USA's 100m Olympic champion Noah Lyles.
One of the major talking points away from the sport has been the introduction of a mandatory SRY or sex test for athletes who intend to compete in female categories.
All athletes in female category take new 'sex test'
World Athletics, led by their President Seb Coe, have taken an unambiguous stance for several years when it comes to talking about and defining new rules around the sensitive issues of the protection of female categories, transgender and DSD (Difference of Sexua