© Darrian Traynor/Getty Images
Nadal, Opelka, Dimitrov and Goffin compete at ATP 250 event
Facundo Bagnis upset Andy Murray 6-3, 5-7, 6-3 in two hours and 27 minutes on Tuesday at the Melbourne Summer Set. The Argentine saved 11 of 13 break points and will now play third-seeded Bulgarian Grigor Dimitrov. Former World No. 1 Murray, who started working with German coach Jan de Witt during the off-season, twice came within one point of a 5-1 lead in the second set before Bagnis fought back.
Elsewhere, Dutchman Botic van de Zandschulp struck eight aces and won 81 per cent of his first-service points for a 6-4, 6-3 victory over Adrian Mannarino of France in 82 minutes. He awaits the winner of eighth-seeded American Mackenzie McDonald and Peter Gojowczyk of Germany.