Iga Swiatek, a self-described "control freak," is taking new precautions after a doping case she described as "probably, like, the worst time in my life." Jannik Sinner, meanwhile, acknowledged that his on his mind entering the season's first Grand Slam.

Grand Slam season kicks off at the Australian Open, tennis remains gripped by lingering questions over doping, with Jannik Sinner and

German tennis icon Boris Becker has said that the sport's image has been tainted by the positive doping tests of top players Iga Swiatek and Jannik Sinner. "Is it bad for tennis? Yes," said Becker in a Eurosport media round table talk ahead of Sunday's Australian Open start.

Doping is a topic that shadowed tennis in 2024 and is sure to be a talking point as the 2025 Grand Slam season gets going at the Australian Open.

Jannik Sinner will launch his Australian Open title defence under a stubborn doping cloud but the whiff of scandal may do little to halt the Italian juggernaut. Sinner remains the man to beat at Melbourne Park even as doping officials seek a two-year ban for the world number one for failing two drugs tests last March.