World number one Jannik Sinner says he is "surprised" by the World Anti-Doping Agency's appeal against the decision to clear him of blame after he twice tested positive for a banned substance.

Reuters has pulled two stories about the World Anti-Doping Agency after it was discovered that one of its officials obtained a Reuters news agency accreditation to attend the Masters golf tournament,

The world No. 1's doping case continues, even though WADA is not attempting to prove he intentionally took clostebol.

The World Anti-Doping Agency (WADA) has lodged an appeal to the Court of Arbitration for Sport (CAS) in the doping case of Italian tennis world number one Jannick Sinner, the agency said on Saturday.

World Anti-Doping Agency appeals steroid case of top-ranked tennis player Jannik Sinner.

ROME (AP) — The steroid case involving top-ranked tennis player Jannik Sinner was appealed by the World Anti-Doping Agency, the Montreal-based body known as WADA announced Saturday. WADA said it is seeking a ban of one to two years for the U.S. Open champion.

Problems with its databases had affected at least 2,000 cases, with Wada losing track of more than 900 test results from athletes who had been accused of breaking anti-doping rules. Read more at straitstimes.

The men's world No. 1 could face a two-year ban. Here's what to know about the doping proceedings against him so far

Top-ranked tennis player Jannik Sinner is "very confident" that he will avoid a doping ban after the World Anti-Doping Agency appealed a decision to clear him of wrongdoing following two positive drug tests.

Top-ranked tennis player Jannik Sinner is “very confident” he will avoid a doping ban after the World Anti-Doping Agency appealed a decision to clear him of wrongdoing following two positive drug tests.

Sinner is “very confident” that he will avoid a doping ban after the World Anti-Doping Agency appealed a decision to clear him of wrongdoing following two positive drug tests.