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.”

Join Tanya Aldred for updates as Yannik Sinner looks to complete a sweep of his group by beating Daniil Medvedev.   20:00 First set: Sinner 3-2 Medvedev* (*denotes next server) Some pin-point placement by Sinner sends Medvedev running from side to side in an attempt to stay in the rally and he eventually hits out.

World no. 1 Jannik Sinner secured a place in the ATP Finals semi-final in Turin for the second straight year. The world's best player is the first semi-finalist of this week's premium ATP event, notching two wins and passing the round-robin stage ahead of his first match against Daniil Medvedev.

Taylor Fritz, the U.S. Open finalist who lost to Sinner in New York, was also drawn in the Italian’s group alongside Australian Alex De Minaur, making his ATP Tour Finals debut; Casper Ruud and Andrey Rublev, who qualified as world No. 9 after Novak Djokovic withdrew, rounded out the second group.

Jannik Sinner became the first player to reach the semifinals at the ATP Finals after Taylor Fritz defeated Alex de Minaur. Sinner, who faces Daniil Medvedev next, has already secured his place in the last four.

It has been just over two months since Jannik Sinner defeated Taylor Fritz in the US Open finals. Much has transpired in the tennis world since then, but Sinner remains as dominant as ever.

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.

There “could have been better communication” in explaining the rules involved in Jannik Sinner’s doping case, ATP Tour chairman Andrea Gaudenzi acknowledged Thursday.