Australian tennis star Nick Kyrgios's appalling sledge to Stanislas -Wawrinka has dragged tennis to a new low and sent Australian officials into a tailspin.
Coming hot on the heels of Bernard Tomic's bizarre outburst and dragging in Davis Cup teammate Thanasi -Kokkinakis, the guardians of the game fear Australian -tennis could be dealt a fatal blow if immediate and decisive action is not taken. 
And so in a desperate effort to save the great game, Tennis Australia has for the first time released an official list of -sledges that Australian players are now formally banned from using.
At the same time, officials have also drawn up guidelines for acceptable on-court banter so as to direct young players towards the true spirit of the game.
Fortunately, in yet another extraordinary exclusive, I have managed to obtain both -explosive lists.
The results, as usual, will shock and amaze.
BANNED SLEDGES 1. "Kokkinakis banged your girlfriend." 2. "Kokkinakis banged your boyfriend." 3. "Suck my Kokkinakis." 4. "You've got sand in your Wawrinka." 5. "You want to know a really crap online streaming service? Stan." 6. "No, that's not a ball in my pocket." 7. "Eat my Nike Ultramesh shorts." 8. "Wanna see my Tomic gun?" 9. "I know you are, I said you are, but what am I?" 10. "You really wanna see some balls out?" 11. Anything that rhymes with "plastic".
12. "Hey Rafa! You know why they call him Roger? Your -girlfriend does." ACCEPTABLE SLEDGES 1. "My friend and fellow countryman Thanasi wishes me bid fair greeting to your lady consort." 2. "  May I respectfully ask that you serve the ball after fewer than 27 bounces?" 3. "I hear that Sweden is lovely in the summer." 4. "In my subjective opinion the ball landed inside the line but I appreciate that others have alternate points of view and I celebrate that -difference." 5. "Croatian women have charming personalities." 6. "Some people say your head is flat enough to land a 747 on. I consider such -remarks to be cruel and -superficial." 7. "Switzerland, eh? I admire the pragmatic approach your nation took during the war." 8. "Well played. I honestly did not see that coming at my head." 9. "I respect the Spanish for their tireless work ethic." 10. "Excuse me, linesman, I believe I may have foot-faulted." 11. "It appears from my -previous double-fault that God is attempting to make a sexual partner of me." 12. "You cannot be Kyrgios!"If you want to see some serious sledging, watch Joe on Studio 10 from 8.30am weekdays on Channel 10.