Kyrgios to the judge: "What are you really doing here?"

It's not long before the Australian Nick Kyrgios gets headlines for his behavior.

In the semifinals of the Houston ATP Tournament, it was even to 5-5 in the second set.

Then Kyrgios wanted the referee to award a ball and got really annoyed.

- You are three referees on gravel and he (Opelka) wins the ball even though it is out.

What are you really doing here?

Kyrgios hissed at the referee and gestured.

Opelka won the ball and the game and then severed the match home to 6-3 7-5.

See Kyrgio's protests in the clip above