Daniil Medvedev admonishes rowdy Australian Open crowd after defeating Nick Kyrgios

Russian world number two Daniil Medvedev took a swipe at unruly tennis fans after his four-set defeat of Australian star Nick Kyrgios.

While Medvedev did his best to block out the crowd's antics during the match — even when they were whipped into a frenzy by a tongue-wagging, amped up Kyrgios as he took the third set with sensational tennis — Medvedev's poise broke post-match in interviews.

The Russian is not the entertainer Kyrgios is, but at this stage of their careers he is the player with the greater on-court achievements.

He took some in the crowd to task for booing or cheering between serves when two-times Australian Open champion turned tennis presenter Jim Courier asked him how he kept his emotions in check.

Medvedev said he had no other option, but as the noise rained down again, the Russian took what may have been the crowd mimicking football great Cristiano Ronaldo's «Siuu» goal celebration for boos as he asked for respect to be shown.

«Sorry, I can't hear you,» Medvedev said.

«Show some respect for Jim Courier, he won here.

»Let him speak please, if you respect somebody, at least respect Jim Courier."

Medvedev went on to sign the camera lens with the word 'Siuuu' before he admonished the Melbourne Park crowd in an interview with Eurosport.

«Break point, second serve and people are cheering like you already made a double fault. That's just disappointing,» he said.

«It's not everybody who is doing it but those who are doing it probably have a low IQ.»

Medvedev later praised Kyrgios for his performance in the match and comments the Australian made about the Russian being a tournament favourite, but said the type of fan behaviour on display should not be a part of tennis.

"[Jeering] between first and second serve, that's