Caroline Wozniacki's prank fail

**** Caroline Wozniacki's failed attempt to prank Maria Sharapova during an interview in Indian Wells, Calif., will go down as a classic in WTA video history.

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Caroline Wozniacki's failed attempt to prank Maria Sharapova during an interview in Indian Wells, Calif., will go down as a classic in WTA video history. Which is the better moment: Wozniacki's inability to pop the balloon or Sharapova's (cheerfully expressed) annoyance that she's going to have to redo her interview?

Here's another view of Wozniacki's practical joke gone awry: