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 will return to the court this week after serving a three-month doping ban. The Italian has been named to compete in a Masters 1000 event in Rome – his first tournament since the Australian Open.

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