Main content
Passport Control: Biological Passports Explained
They are supposed to be the tool that levels the playing field between dopers and the authorities. However, Czech cyclist Roman Kreuziger is just the latest athlete to claim the anomolies with his passport's readings have an innocent explanation. So, just how effective are biological passports and what exactly do they do? The 成人快手's Matt Slater answers these questions...
Duration:
This clip is from
Featured in...
![]()
On Your Bike - Stories of Cycling—Sportshour
Stories from around the world of cycling and beyond
More clips from Sportshour
-
![]()
Damian King and his return to the waves
Duration: 06:53
-
![]()
Triple amputee鈥檚 history-making Pacific solo sail
Duration: 08:10
