Reigning champion Van Gerwen will open his challenge to claim a seventh title in the event when he plays 23-year-old fellow Dutchman Doets on the opening day of the tournament. and conducted in July found 55 per cent fans support the idea of more frequent World Cups. Medvedev saved three set points in the opener before getting past qualifier Hugo Gaston 7-6 (9-7) 6-4, and Zverev defeated Casper Ruud 7-5 6-4.Don't forget to follow us onskysports.com/tennisour Twitter account@skysportstennis Australia's victory meant South Africa needed to defeat England by a large margin later in the day to overhaul Aaron Finch's side on net run-rate but the Proteas missed out after only recording a narrow 10-run win.