(BBC) – The World Anti-Doping Agency (Wada) says it is “unfairly caught” in a row between the US and China, with their geopolitical tensions spilling onto the Olympic stage. China’s top swimmers have been in the spotlight after a slew of doping allegations, followed by contentious US claims that Wada was covering it up.

Chinese swimmers headed to Paris were drug-tested twice as much as some other nations, which, in turn, has fuelled accusations of a conspiracy to disrupt their performance. (Read More)