Wayne Odesnik reached the second round of the Australian Open after beating Blaz Kavcic in four sets on Monday.
Ranked 89 in the world Odesnik, a naturalised American, came from behind to win 4-6, 6-1, 6-4, 6-2 in Melbourne.
The 24-year-old from Johannesburg will meet 27th seed Phillip Kohlschreiber or Harcio Zeballos in round two.
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