Former world No. 1 Victoria Azarenka has stunned the tennis world with her gravity-defying feat in the Ostrava Open.
During her round of 16 match against Czech tennis star Barbora Krejcikova in Ostrava, Azarenka fought back after losing the opening set in a double break.
Taking the match to a must-win third set, the Belarusian was serving for the match when her backhand slice skimmed across the top of the net before toppling over the other side.
Azarenka could barely comprehend what she had witnessed, crouching onto one knee and giggling in disbelief.