Australian Open 2019: Ninth seed John Isner knocked out in first round by Reilly Opelka in battle of giants

Melbourne: American number one and ninth seed John Isner was knocked out of the Australian Open on Monday in one of the biggest shocks of the first round.

The 6ft 10in (2.08m) Isner was beaten by 6ft 11in (2.11m) fellow American Reilly Opelka 7-6 (4), 7-6 (6), 6-7 (4), 7-6 (5) in a battle of the giants.

Reilly Opelka of the US hits a return against John Isner of the US during their men's singles match on day one of the Australian Open tennis tournament in Melbourne on January 14, 2019. (Photo by Paul Crock / AFP) / -- IMAGE RESTRICTED TO EDITORIAL USE - STRICTLY NO COMMERCIAL USE --

Reilly Opelka beat compatriot John Isner in the first round of the Australian Open. AFP/Paul Crock

No fewer than 87 aces were powered down between the big-serving pair with just one break apiece being registered in the fourth set of a match that lasted 2hr 58min.

Isner, 33, had not lost a Grand Slam match to a player ranked as low as number 97 Opelka, who is 12 years his junior, since retiring due to a foot injury while trailing 106th-ranked Martin Klizan in the first round at Melbourne in 2014.

Opelka has never before reached the second round of a Slam and will next face Italy's World No 102 Thomas Fabbiano, who beat Australian wildcard Jason Kubler 6-4, 7-6 (1), 2-6, 6-3.

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Updated Date: Jan 14, 2019 14:38:28 IST

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