It was at the beginning of the second set that the accident happened.
Danish tennis star Holger Rune reached out to catch a ball and ended up tripping and falling on the hill.
He was quickly helped by a physiotherapist and after a while the 19-year-old was able to stand up to the tunes of the audience's cheers.
- I feel better than expected, I was a little worried for a while.
My ankle feels fine but my wrist is a little sore.
But the doctor has examined me and said that everything is calm, there was nothing to worry about, says Rune to the ATP tour's website.
Holger Rune won the match in three straight sets (6–4, 6–2, 7–5) and now world number six Andrej Rublev awaits in the round of 16.
According to the news agency Ritzau, it is the first time since 1993, when Kenneth Carlsen celebrated great triumphs, that a Dane has made it this far in the Australian Open.