Jannik Sinner’s co-coaches discuss in a joint interview with The Associated Press how the top-ranked player from Italy keeps winning at the ATP Finals amid enormous expectations from his home fans and a pending doping case.

Andrea Gaudenzi said at the ATP Finals that anyone hinting that a “double standard” was applied because of top-ranked Jannik Sinner’s status is “unfair because the rules have been the same.”

There "could have been better communication" in explaining the rules involved in Jannik Sinner's doping case, but no double standard was applied, ATP Tour chairman Andrea Gaudenzi acknowledged.