Marinko Matosevic has lived up to his `Mad Dog’ moniker with an on-court meltdown following his first-round win at the Cincinnati Masters.

The Australian cursed, spat and threw a kick towards a television camera at the end of his 6-4 7-6 triumph over Frenchman Nicolas Mahut on Monday, fuming over an earlier call by the umpire.

Matosevic served what he believed was a match-winning ace and began celebrating, only to have it overruled and called out.

After wrapping up the match moments later, the 29-year-old vented his frustration and refused to shake the umpire’s hand despite his victory.

He next faces either American John Isner or South Africa’s Kevin Anderson.

Matosevic is no stranger to controversy.

The world No.89 caused a stir at Wimbledon in June after saying he didn’t “think that highly of the women’s game” when asked if he would ever follow Andy Murray’s lead in hiring a female coach.

In January, he lashed out at fans at the Australian Open for calling him `Mad Dog’, saying post-match: “Hearing the stupid nickname … (it gets to me) because it’s not my nickname. Some idiot put it on Wikipedia.”