Australian tennis player Nick Kyrgios has sparked controversy by arriving at a press conference wearing a T-shirt bearing the slogan "Fuck Donald Trump".

The 21-year-old wore the T-shirt as he faced the media after beating Rafael Nadal at an exhibition match in Sydney on Monday.

The garment depicted controversial US president-elect Trump, who claimed a surprise victory in November's election, with devil horns.

Asked to explain his choice of T-shirt, Kyrgios replied: "It's pretty explanatory."

The world number 14 was making a return to action after being banned for giving up during a match at the Shanghai Masters last October.