The HSBC Sevens World Series is nine tournaments held around the world . The series started in October and will conclude in London in May . The sport is famed for speed and athleticism . TL;DR ( CNN ) -- A new report says that a number of athletes have been caught doping at major sporting events over the past decade.
The HSBC Sevens World Series is nine tournaments held around the world . The series started in October and will conclude in London in May . The sport is famed for speed and athleticism . TL;DR A new report says that a number of athletes have been caught doping at major sporting events over the past decade.