One month or four years? Timing key in Kyrgios ban

Nick Kyrgios is facing a potential doping ban after testing positive for cocaine. The length of the ban hinges on whether Kyrgios can demonstrate that he consumed the substance outside of competition, which could mean the difference between a one-month suspension and a four-year ban. The case highlights the distinction anti-doping rules make between in-competition and out-of-competition use of certain prohibited substances.