Shane Warne has come out this week with an open letter to Nick Kyrgios on his official Facebook page, telling him "you're testing our patience mate."
The tennis player has quickly become the bad boy of his sport after comments made about Stan Wawrinka's girlfriend during their match at the Montreal Masters. The 20-year-old has also thrown away certain points in games, after he seemed not to make an attempt at playing a shot.
Prior to his first round loss at the US Open to Andy Murray on Tuesday, the Australian said he had learned to keep his mouth shut after receiving a fine and suspended ban as a result of his match against Wawrinka. He also told the BBC: "I don't think any of us...were perfect at 20" and he knew "100%" why some spectators had jeered him at matches.
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But Warne, who is Australia's leading wicket-taker, said "respect is more important than being liked. Please don't waste your talent, everyone in the world wants to respect you, especially Australians."
Warne also hinted at the never say die and fight to the end ethos of the most Australian sportsmen and woman by stating, "No shame in losing, but show us you will never give up, that you will give it everything to be the best you can be."
Some have criticised the 45-year-old for his comments, saying he is just seeking attention. One thing is for sure, with the former spin bowler being an Australian sporting great, his younger countryman will take notice- if it helps him or not. But this may have been a real show of frustration in watching someone young, with so much talent, not making the best of it.
Warne also went through some rocky times early in his career but could never be accused of not trying or neglecting his ability on the cricket field- something he used to propel himself to the pinnacle of his sport. An example that the tennis hopeful could use to further his undoubted potential.
Tennis has had no shortage of characters that have shook its very establishment over the years. Legends like Andre Agassi and John McEnroe also sometimes showed disrespect to the sport and its officials but both went on to hold the greatest respect within the tennis world, as they became multiple grand slam champions.
Many have eluded to the number 37 in the world's age, but, although they also had their critics, Agassi and McEnroe both had success and won titles by the time they were 20-years-old, something Kyrgios has failed to do so far.
All that know the sport will admit Kyrgios could go on to be one of the best but like Warne has highlighted, patience with the youngster will only stretch so far.