Sports
Are there ‘different approaches’ to tennis doping cases?
Grand Slam winners Iga Swiatek and Jannik Sinner have recently tested positive for banned substances.
Their cases have led to questions over the way anti-doping cases are handled and whether players are treated differently.
Two-time Grand Slam champion Simona Halep and British doubles player Tara Moore have, in recent years, spent significant time out of action waiting for doping cases to be heard.
They were critical of the time taken to hear their cases compared to those of Sinner and Swiatek, with Halep saying there were “completely different approaches”.
The International Tennis Integrity Agency (ITIA), which handles doping cases, has strenuously denied any differences in the way players are treated.
BBC Sport looks at the differences and similarities between the four cases.