Arthur Fils stunned defending champion Alexander Zverev in a three-set battle to win Hamburg Open, an ATP 500 event, on Sunday. Fils, the fifth-seeded Frenchman, beat top seed Zverev 6-3, 3-6, 7-6(1) in the summit clash which lasted three hours and 33 minutes. He had lost his previous two matches against the German, including last year’s semifinal at the same tournament. #hamburgopen