Tsitsipas thrashes Zverev to reach ATP semis

Debutant Stefanos Tsitsipas crushed defending champion Alexander Zverev 6-3 6-2 on Wednesday to book his place in the last four of the ATP Finals with a match to spare.

The 21-year-old, the first Greek player to qualify for the elite eight-man season-ender, backed up his opening round-robin win over Daniil Medvedev with another virtuoso performance at the O2 Arena and is yet to lose a set.

His emphatic victory secured a top-two place in the group and left Zverev, world number one Rafael Nadal and Medvedev scrapping to join him in Saturday's semi-finals.

A year ago Tsitsipas was winning the NextGen title in Milan — the ATP's showcase event for up-and-coming players — and in his two matches so far in London he has bolstered the impression that he has the game to start collecting Grand Slam titles.

His swashbuckling all-court game, with a booming serve,...