WADA said last month’s ruling by an independent tribunal to find the Italian world number one had no fault or negligence was not correct under the applicable rules.
It has appealed to the Court of Arbitration for Sport (CAS) and said Sinner should be banned for between one and two years.
Sinner was on court against Roman Safiullin in the last 16 of the China Open in Beijing when Wada’s appeal was announced.
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