CARDIFF, WALES - JANUARY 09: Ex rugby international Alix Popham begins his swim training in an endless pool for his sporting challenges in 2023, he aims to race IRONMAN Wales, Cycle to the Rugby World cup with Geraint Thomas and Swim the English channel as part of a relay team on January 09, 2023 in Cardiff, Wales. In April 2020, Popham was diagnosed with early onset dementia; doctors estimated his brain had suffered up to 100,000 sub-concussions over the course of his 14-year professional career. Together with Steve Thompson and Michael Lipman, Popham has filed legal claims against the Rugby Football Union, the Welsh Rugby Union and World Rugby for the injuries they sustained whilst playing the game. (Photo by Huw Fairclough/Getty Images)
