During a live TV interview at the Rod Laver Arena following her win over Carla Suarez, Clijsters announced what Woodbrige had said to the former doubles champion.
Clijsters said: "By the way, Rennae Stubbs showed me a text message you wrote about me in Sydney... you thought I was pregnant? Let me say what was written in the message... 'She looks really grumpy and her boobs are bigger!'"
As the crowd applauded, Woodbridge quipped: "Well that's the end of my TV career, thank you very much!"
According to The Australian, Clijsters - who confirmed that she is not pregnant - later explained: "I'm obviously very close with Rennae Stubbs. Yesterday after one of my practices, we were sitting around, talking, laughing away. We were talking about like babies, having a second one.
"All of a sudden she goes, 'Yeah, Todd last week in Sydney wrote me a message during your match saying that he already thought you were pregnant'.
"I was like, 'Oh, really?'. And then she showed me. So I walk out there, it's like, 'Okay, I'm going to get him back now.'"