Russell Fuller, BBC tennis correspondent
Wada’s statement suggests it is not questioning Sinner’s explanation, but does believe he shares some of the blame.
The Court of Arbitration for Sport will now need to decide whether the world number one should be held in any way responsible for a sequence of events which began with his physio using a spray to treat a cut on his finger.
The spray, which contained clostebol, had been passed on by Sinner’s fitness coach, who had been brought into the team partly because of his anti-doping expertise.
Gloveless massages – with hands which may or may not have been washed – and lesions on Sinner’s skin resulted in the two positive tests, the tribunal determined.
While Sinner is free to play on, the case could take many months to resolve.
The International Tennis Integrity Agency appealed to Cas in January against the decision to exonerate Tara Moore of doping, and the hearing is still to be scheduled.
Whether Sinner’s case is fast-tracked because of its high profile nature remains to be seen.
