The visit comes after reports that Jamaica's athletes could face an Olympic ban if Jamaican anti-doping authorities were found to be non-compliant with the World Anti-Doping Code.

A well-placed official has revealed that Jamaica did not test its athletes for dope for months leading up to the London Olympics.

Held at the Athletes' Village, located in Nanjing University of Technology, the activity was designed to provide young athletes with anti-doping education and to motivate young athletes to understand the dangers of using illegal substances, reports Xinhua.

Reedie will be the third WADA president after fellow International Olympic Committee member Dick Pound and Fahey, and is in line with the original agreement that the WADA president alternates between being nominated by the IOC and then the next one by governments.

Team officials confirmed that agents from the World Anti-doping Agency (WADA) arrived at the camp in Moscow, where all of the athletes had blood taken in the sweeping operation.

The duo's positive A samples were revealed last week, plunging the sport into crisis and turning the focus onto banned substances just three weeks away from the August 10-18 world championships in Moscow.

WADA and the Spanish anti-doping agency have both said they will appeal the ruling.

Vijender's roommate at the National Institute of Sports in Patiala, Ram Singh admitted to experimenting with drugs along with the former world number one boxer, who, however, has denied the allegations.

It is not known if Sanchez will appeal the ban, which prohibits him from taking part in "all official fixtures at domestic and international level" until Jan 21, 2015, reports Xinhua.

Last month, an Australian Crime Commission investigation found the use of performance enhancing drugs in the country was widespread, with some athletes being given substances not yet approved for human use.