Alexander Zverev will return to London for the ATP Finals next month having sealed his place in the season-ending tournament with a Shanghai Masters quarterfinal win over Kyle Edmund.
The German made his debut at the Finals last season and the 21-year-old ensured that he will be involved again in 2018 following a 6-4, 6-4 success over Edmund.
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Zverev, ranked fifth in the world, is now two wins away from a fourth title of the year and is yet to drop a set in Shanghai.
Five of the eight ATP Finals spots have been taken, with Zverev joining Rafael Nadal, Novak Djokovic, Juan Martin del Potro and Roger Federer.