Why positive cocaine test could mean end of Kyrgios' career

Nick Kyrgios admitted to testing positive for cocaine during his comeback attempt at the Mallorca Open, causing speculation about the end of his tennis career. The 31-year-old Australian explained it was a "huge mistake" and took full responsibility, but the ongoing injuries have taken a toll on him. He will not be able to play until his case is resolved due to a mandatory provisional suspension, with a potential ban of up to four years, limited to three months if he can prove the drug was taken out of competition.

Kyrgios has faced multiple disciplinary issues in the past, including banned for lewd remarks, abusing officials and spectators, and assaulting his ex-girlfriend. Despite his troubled past, Kyrgios once stunned Rafael Nadal and reached the Wimbledon finals. However, his recent behavior and struggles with addiction have raised concerns about his future in the sport.