'I am in shock': Vandeweghe outburst stuns Aussie great

An Australian tennis great was absolutely gobsmacked Coco Vandeweghe didn't get a warning for an angry outburst in her semi-final loss to Venus Williams.

After being broken in the second set to give up a 1-4 lead, Vandeweghe launched a ball into the crowd in anger.

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Commentating for Channel 7, Rennae Stubbs was furious umpire Eva Asderaki didn't issue the American a warning.

"I am in shock that Eva Asderaki did not give her a warning, that was hit in anger into the crowd," Stubbs said. "That's usually an instant warning. I'm surprised, Eva's such a good umpire, to not give her that warning.

"The reason that upsets me is that's a rule. If you hit a ball into the stands in anger, that's an automatic warning.

"To not give the warning sets a tone or precedent that you can get away with it, and that ambiguity is what drives players crazy."

Vandeweghe has a history of losing her temper, smashing multiple racquets in her short career.

Men's World No.2 Novak Djokovic copped a fine for hitting a ball into the crowd earlier this year.

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