Novak Djokovic’s son Stefan had a very simple message for his father before the Australian Open men’s singles semi-final – “make sure you win”.And the doting father did exactly that on Friday as he hammered Frenchman Lucas Pouille in straight sets to reach the men’s singles final where he will face his arch-rival Rafael Nadal.The world No. 1 took just over an hour and 20 minutes to dispatch Pouille and register a 6-0, 6-2, 6-2 win in the last-four encounter at the Rod Laver Arena.After the game the Serbian tennis ace revealed the 45-minute conversation he had with his four-year-old son just before the match.”My son was talking about Spiderman – he was acting like a fish and doing different things – he just wished me good luck and said, ‘make sure you win’. We are parents of two angels and for me, this is life,” Djokovic said at the post-match interview on court as the crowd burst out laughing.”Make sure you win.” @DjokerNole’s four-year-old son Stefan’s advice to his dad before he takes to the court. #AusOpen pic.twitter.com/3gcMMezu5S#AusOpen (@AustralianOpen) January 25, 2019On a more serious note, Djokovic recalled his 2012 Australian Open final against Nadal when the Serb outclassed the Spanish master in a 5-hour and 53-minute marathon. But this year he hopes that the final won’t last that long.”First of all, I would definitely want to buy the ticket for the final. We have slightly different rules this year and I don’t think we will go that far. But it’s once-in-a-lifetime opportunity and I hope the result will be the same for me.”advertisementListen up @DjokerNole has a public service announcement for the 2019 #AusOpen men’s singles final against @RafaelNadal. pic.twitter.com/8gOhMm7Uc2#AusOpen (@AustralianOpen) January 25, 2019Djokovic also applauded Lucas Pouille and said the Frenchman has a bright future. “It’s one of the best matches for me on this court. Tough one for Lucas but he had a great tournament and I wish him all the best for the rest of the tournament. He has the quality to be a top-10 player.”It was highly unlikely I would be here given (my state of health a year ago).. but I alwyas have a lot of belief in myself,” he added.”It’s definitely one of the best matches I’ve ever had on this court. Definitely.”@DjokerNole #AusOpen pic.twitter.com/8yV0kqLH6B#AusOpen (@AustralianOpen) January 25, 2019With this win, Djokovic extended his streak of Grand Slam semi-final victories to 10, and advanced to his record-equalling seventh final in Australia. He shares the record for most Australian titles with Roger Federer and Roy Emerson. Djokovic has never lost a championship match at Melbourne Park.The 31-year-old has won the last two majors and simply overwhelmed the No. 28-ranked Pouille, who was playing in the semis at a Grand Slam event for the first time.