Jannik Sinner has been dropped from an exhibition event in Las Vegas next month while the No. 1-ranked men's tennis player is serving a three-month ban connected to a pair of failed doping tests.

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.

Jannik Sinner has accepted a three-month ban in a settlement with the World Anti-Doping Agency over his two positive doping tests.

Jannik Sinner has accepted a three-month ban from tennis to settle a case which has lingered over the sport for months after he twice tested positive for a banned substance, the World Anti-Doping Agency (WADA) announced on Saturday.

Jannik Sinner, the world’s No. 1 male tennis player, has accepted a three-month ban from the sport following an anti-doping rule violation. Australian Open champion Sinner, 23, received a sanction in August but was found by the International Tennis Integrity Agency (ITIA) to bear “no fault or negligence” after twice testing positive for clostebol — a banned anabolic steroid — at the Indian Wells Masters 1000 tournament in March.

Jannik Sinner of Italy celebrates winning match point during the ... [+] Semi-Final match against Novak Djokovic of Serbia in the Davis Cup Final at P

Novak Djokovic claimed Jannik Sinner was shown “favouritism” over his “strange” three-month doping ban as he hit out at “inconsistencies” in cases involving top players.

Many in the tennis world are expressing skepticism with the process that led to Sinner's three-month suspension

Jannik Sinner, the world's top-ranked tennis player, is under scrutiny after reportedly practicing in Doha, Qatar, despite a three-month doping ban that prohibits him from training and competing.