Maria Sharapova's match against Julia Goerges at the Australian Open on Friday was delayed for 20 minutes due to a dead spot on the court of Hisense Arena.
The video shows an umpire walking out onto the court and attempting to bounce a tennis ball, but it laid flat on the ground and didn't bounce.
According to the Herald Sun, the dead spot was "caused from the court heat forcing a flat bubble patch on the plexicushion surface."
Staffers drilled holes into the spot to fix the problem and Sharapova went on to win the match. Scroll down to watch the video.