Jannik Sinner’s reappearance at the Italian Open guarantees attention, following his three-month suspension for failing two “in-competition” drug tests, during and eight days after Indian Wells last year,

Jannik Sinner returns to action at the Italian Open after the conclusion of the World No 1’s three-month doping ban. Sinner has not played since winning the Australian Open in January for his third grand slam title after the Italian reached a resolution agreement with the World Anti-Doping Agency (WADA).

The men's world No. 1 missed several tournaments, but no Grand Slams. Here's what to know about the doping proceedings against him.