The two best men's players in the world are reconfiguring the sport before their opponents' eyes. They don't know what to do about it

Carlos Alcaraz was in fine form as he cruised to a first-round win at the Australian Open, but it was his comments on Jannik Sinner which drew attention.

As we said, Jannik failed two doping tests carried out during the BNP Paribas Open in Indian Wells, testing positive for Clostebol. The Italian was first acquitted by the independent ITIA tribunal, but - as we now know - WADA appealed to the CAS in Lausanne, asking for 1-2 years of suspension.

Iga Swiatek, a self-described “control freak,” is taking new precautions — including holding on to extra samples of medicine she takes, in case they need to be tested at some point — after a doping case she describes as probably the worst time in her life.

Exclusive - Barbara Schett answers a big question on Jannik Sinner and Carlos Alcaraz's Australian Open preparations.