Shane Warne has a stark message for Nick Kyrgios

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Australian cricket legend Shane Warne has advised young tennis star Nick Kyrgios to knuckle down and stop the antics following his defeat to Andy Murray.

Kyrgios, 20, clowned around on court as he lost to Murray in the first round of the US Open and Warne gave his views openly to his compatriot via a social media post on Thursday.

The message reads as follows:

Dear Nick Kyrgios,

We all realise you're only 20 and have a lot to learn, buddy. But please don't waste your talent.

Everyone in the world, especially us Australians, want to respect you. Remember, respect is way more important than being liked. You need to respect the game of tennis and yourself. We all make mistakes, but it's how we learn from them and the way we conduct ourselves when we lose that shows true character.

You're testing our patience mate. Show us what you're made of and how hungry you are to be the best in the world.

"It's time to step up and start winning, no excuses. No shame in losing, but show us you will never give up and that you will give it everything to be the best you can be.

Respect is earned, not given! I believe in you and know you can do it, but now's the time my friend...