Clijsters, who announced in May that she would retire after this year's US Open, has admitted that she is not thinking about her retirement and is focused on winning one more tournament.
"My goal is to try to win the US Open," Eurosport quotes Clijsters as saying. "Obviously this place is magical for me. I have had so many beautiful memories.
"I've trained hard. I'm in maybe the best shape that I have been in. I'm not worried physically that I'm not ready to do it.
"I love the surface, I love the atmosphere, and I'm excited. I'm not really thinking about retiring yet. I'm still focusing on trying to be in the best shape that I can be."
The 29-year-old has seven career Grand Slam singles titles to her name.