Anna Kalinskaya was set to face Australia’s Kim Birrell in her opening match on Tuesday.
But last year’s quarter-finalist withdrew from the tournament at the 11th hour and was replaced by lucky loser Eva Lys, who went on to win.
Kalinskaya was forced to retire from her opening match at last week’s Adelaide International and failed to recover in time for the Aussie Open.
The world No. 16 is set to drop down the rankings as she can’t defend the points she earned last year.