The case of the world No. 1 in men's tennis is at the center of anti-doping protocols and reforms that could redefine its parameters.

For too long it seems WADA has cast out athletes, particularly those with little access to top legal teams like that on Sinner’s side

There was a risk that the 3-time Grand Slam champion could suffer a suspension of one to two years, which would probably have been excessive in relation to the infraction committed. For this reason, Sinner and WADA have found an agreement that was published a week ago and which provides for a three-month suspension for the Italian ace.

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

Toni Nadal has shown his support for Jannik Sinner following the Italian player's three-month suspension due to doping allegations.