"I don't think she will be too far behind. With some hard practice she can be back."
And Venus Williams, who has a 6-4 advantage over Clijsters in their 10-match history, supported Ivanovic's assertions.
"If that's what she wants and as long as it makes her happy. I'm sure she could compete," said the world number six.
BBC tennis correspondent Jonathan Overend said Clijsters will operate on a limited tournament schedule, balancing her playing duties with motherhood, but it should not harm her prospects of returning to the top 10.
"Serena Williams is number one in the world and she is hardly week-in, week-out on the tournament scene," he said.
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