Controversial AFL commentator Kane Cornes appears to have met his match, with his blasting of Nick Kyrgios’ first-round exit at the Australian Open seeing the tennis star return fire on Twitter.

That’s not tennis to me. That’s not sport. "Nick Kyrgios without his serve is probably not — I’m not a threat to many players,” added the 29-year-old.

Even with an extraordinary rally, featuring a reverse and forward tweener ... and feeding Kyrgios the adrenaline shot he needed. A break of serve followed — Novak and Nick's first of the match ...

Nick Kyrgios is out of the Australian Open ... before going down a break of serve. At 1-4, Kyrgios called physios to the court, but continued. They returned at 2-5, but only engaged in ...

I mean, Nick Kyrgios without his serve is probably not a threat to many ... In the middle of the seventh game of the third set, Kyrgios produced a tweener and a behind the back shot before ...

My average serve speed was beneath 200. I mean, Nick Kyrgios without his serve is probably not a threat to many players.” Kyrgios confirmed he was still planning on playing doubles with his good ...