On the one-year anniversary, Casey Dellacqua has updated her fans on her break from tennis after a freak accident in Beijing last year. In the clip, you can see her fall during the semifinal against Hao-Ching Chan and Yung-Jan Chan. Her partner Yaroslava Shvedova could only look on as the incident unfolded.

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"Unfortunately it's a shot I wish I never went for..." Dellacqua writes. "I genuinely thought after a couple of weeks I would be all good and back on court, however this was far from the case at all. My post-concussion symptoms were terrible..."

The four-time doubles Grand Slam finalist was forced into a four-month hiatus from the game despite reaching her career-high doubles ranking of No. 3 in February of this year. Dellacqua has played just five events in 2016, last appearing in Charleston (playing doubles with Sam Stosur).

Concussions, though rare in tennis, have occurred before. Eugenie Bouchard was the last to suffer the injury, but her fall happened in the US Open locker room in 2015. Victoria Azarenka also suffered an off-court fall before retiring from the 2010 US Open with a concussion.

Both Bouchard and Azarenka have recovered, while the 31-year-old Dellacqua is still dealing with post-concussion symptoms.

"But it was after my physical symptoms subsided and I started to feel better that the worst was yet to come. I experienced terrible anxiety to the point where I couldn't leave the house," Dellacqua writes. "I have never experienced anxiety before and it was really scary."

The Australian has not stated when she will return.