Jannik Sinner and the whole doping system's lack of transparency are under fire from across the tennis world after the world number one strikes a deal to accept a three-month ban from WADA.

Doping Agency to accept a three-month ban for positive doping tests has been criticized by Australian player Nick Kyrgios, with the Professional Tennis Players Association citing a "lack of transparency" in the system.

Nick Kyrgios took another dig at Jannik Sinner after World No. 60 Alexandre Muller expressed his frustrations at being drug-tested at midnight after winning at the Rio Open.

Nick Kyrgios has sharply criticized Boris Becker after he was ridiculed for his relentless criticism of Jannik Sinner. The Australian took issue with Becker's reaction to the mockery.

Nick Kyrgios has been a critic of Jannik Sinner since the Italian twice tested positive for a banned substance.

Jannik Sinner’s three-month doping ban isn’t sitting right with some in the tennis world. Australian star Nick Kyrgios ripped the World Anti-Doping Agency (WADA), claiming Sinner got off easy with the monthslong suspension over his two positive drug tests.

Nick Kyrgios wasn't impressed at all with Jannik Sinner settling with the WADA and avoiding going to the CAS in April. In late September, the WADA lodged an appeal in the ITIA's ruling that the Italian bore no responsibility for a failed doping test that ...

Top-ranked Jannik Sinner accepting a three-month doping ban deal was slammed by his fellow tennis professionals on Saturday.

Toni Nadal has waded into the debate surrounding Jannik Sinner’s three-month ban, and he’s made it clear that he’s not a fan of seeing the world No. 1 on the sidelines.