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MELBOURNE, Australia (AP) — Iga Swiatek's one-month suspension for failing a drug test will not be appealed by the World Anti-Doping Agency because her explanation "is plausible," WADA announced on Monday.

WADA released its decision just minutes after Swiatek, a five-time Grand Slam champion and former No. 1-ranked women's tennis player, sealed a 6-0, 6-1 victory against Eva Lys to reach the Australian Open quarterfinals.

Swiatek has dropped just 11 games in her four wins thus far at Melbourne Park.

Swiatek has dropped just 11 games in her four wins thus far at Melbourne Park.

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Unlike the Swiatek case, WADA did appeal the exoneration of current men's No. 1 Jannik Sinner and a hearing is scheduled to be heard at the Court of Arbitration for Sport (CAS) in Lausanne, Switzerland, in April.

Sinner was not suspended because the International Tennis Integrity Agency (ITIA) determined he was not negligent for two positive tests for an anabolic steroid in March.

The resolution of Swiatek's case was made public by the ITIA in late November. She already had been sidelined provisionally, missing three tournaments in October, and finished her ban during the sport's offseason.