The Italian tennis world number one Jannik Sinner tested positive for the banned steroid clostebol on two occasions last year, a substance he ingested by mistake according to himself.
Initially, he was acquitted, but after Wada appealed to the Court of Arbitration for Sport (Cas), Sinner and Wada eventually agreed on a three-month suspension.
Novak Djokovic is one who has expressed criticism of the length of the penalty, which is considered too mild.
But Wada stands firm.
The scientific feedback we received was that it could not be a case of intentional doping, says Ross Wenzel.
And adds:
Wada has also received messages from some who think the penalty was too harsh. Some say this is unfair to the athlete, and others say it's not enough. Then it's perhaps an indication that even if it won't be popular with everyone, it was the right assessment.
Sinner's suspension runs from February 9 to May 4, which means he will be able to play in the next Grand Slam tournament of the season at Roland Garros in Paris.
