Jannik Sinner admits to ‘sleepless nights’ amid anti-doping controversy
Jannik Sinner has revealed he’s had “sleepless nights” amid his ongoing anti-doping controversy. The World No 1 said that he is “very disappointed and also surprised” after the World Anti-Doping Agency (Wada) announced that it would be appealing the decision to clear the Italian of a doping offence.