VIDEO: Is this Kei Nishikori miss the worst shot in Tennis history?

Tennis Videos

Sometimes, you just have a bad day…

Kei Nishikori started well in his Italian Open quarter-final against Novak Djokovic, but it soon started going horribly wrong.

Peak wrong happened at a key moment in the deciding set, though, when the Japanese star did this…

Is that the worst shot in tennis history? It can’t be far off.