Tennis star Jannik Sinner revealed he considered walking away from the sport over his recent doping suspension and the reaction to his situation.

Jannik Sinner said he “didn’t feel at ease” during the Australian Open in January and considered taking a break from tennis after he was sanctioned for two anti-doping violations.

As Jannik Sinner nears the end of a three-month doping ban that shook the tennis world, players are flocking to anti-doping authorities seeking advice on how to avoid positive tests due to contamination.