Daniil Medvedev addressed doubters who said his career was "finished" after getting his first win of the week at the ATP Finals. The Russian had a self-confessed "tantrum" in his opening round-robin match against Taylor Fritz, receiving a point penalty and threatening to retire. But he turned things around to beat Alex de Minaur on Tuesday.

Taylor Fritz benefited from a questionable serving decision by Daniil Medvedev and frustrated his opponent so much that the Russian broke his racket and was docked a point in a 6-4, 6-3 victory for the American in the opening match of the ATP Finals.

TURIN - Daniil Medvedev might have to delay his holiday plans a while longer after rediscovering his spark to beat Australia's Alex de Minaur in straight sets at the ATP Finals on Tuesday. Read more at straitstimes.

Over his last 10 tournaments, Medvedev has won 79.8% of his service games and 28.8% of his return games. de Minaur has won 78.6% of his service games over his last 10 tournaments, and 37.0% of his return games.

Daniil Medvedev threatened to retire from his opening match at the ATP Finals shortly after being given a point penalty. The world No. 4 had a full-blown meltdown after getting broken in the second set of his match against Taylor Fritz.

TURIN, Italy (AP) — Top-ranked Jannik Sinner became the first player to advance to the semifinals at the ATP Finals on Thursday. Sinner was assured of a spot in the last four after U.S. Open finalist Taylor Fritz beat Alex de Minaur 5-7, 6-4, 6-3 in their group.

The round-robin stages of the ATP Tour Finals in Turin, Italy are heading into their final matches. After eight matches, all of them straight-sets wins, none of the eight singles players in the tournament have qualified,

Still plenty to play for in group Ilie Nastase, although the scenarios where Jannik Sinner doesn’t make the semifinals or Alex de Minaur does are mostly theoretical.

Alex de Minaur has been thrashed in his first two ATP Finals matches - but there is still a slim chance he can reach the semi-finals in Turin.