The world No 1 Jannik Sinner eased past Daniil Medvedev in straight sets to qualify top of his group in Turin

In the head to heads, both Sinner and Medvedev have won matches seven apiece, with Sinner dominating recently (with the exception of Wimbledon).

The commentators agree, they look at Medvedev and don’t know quite how it works, but it does.