Question 1: What is the reason for the World Anti-Doping Agency (Wada) appeal against Jannik Sinner?
Wada has appealed against the ruling made by the International Tennis Integrity Agency, which stated that Sinner bore 'no fault or negligence' for two positive tests for clostebol, a banned anabolic steroid.
Question 2: What explanation did Jannik Sinner provide for his positive tests?
Sinner claims that the positive tests were caused by contamination from a cream he applied to a cut.
Question 3: How did Sinner react to Wada's decision to appeal?
Sinner expressed that he was 'surprised' by Wada's decision but stated he would continue to collaborate with the agency, as he had done previously.
Question 4: What is Sinner's current outlook on the appeal process?
Sinner stated he is 'very confident' of a positive outcome and would be 'very surprised' if the result were otherwise.
Question 5: Who is Jannik Sinner scheduled to face in the first round of the Shanghai Masters?
Sinner is set to face Japan's Taro Daniel in the first round on Saturday.