With Roger Federer and Rafael Nadal out of the picture and the clock ticking on Novak Djokovic, we are currently in the midst of a new era of tennis. At the forefront of that new era are two young superstars – Carlos Alcaraz and Jannik Sinner.

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.

"However, under the code and by virtue of Cas precedent, an athlete bears responsibility for the entourage's negligence. Based on the unique set of facts of this case, a three-month suspension is deemed to be an appropriate outcome," they said in a statement.