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Watch Nick Kyrgios produce set-winning underarm serve and stunning winner against Thiem | Tennis | Sport | Express.co.uk
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Australia's Nick Kyrgios serves against Germany's Jan-Lennard Struff at the ATP Cup - ABC News (Australian Broadcasting Corporation)
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Nick Kyrgios serves from tramlines, has handshake snubbed and dances in latest Australian Open wild show - Eurosport
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Australian Open: Nick Kyrgios is up to his old tricks as he serves underarm BETWEEN HIS LEGS | Daily Mail Online
![Nick Kyrgios stuns Australian Open crowd with underarm tweener serve vs Liam Broady | Tennis | Sport | Express.co.uk Nick Kyrgios stuns Australian Open crowd with underarm tweener serve vs Liam Broady | Tennis | Sport | Express.co.uk](https://cdn.images.express.co.uk/img/dynamic/72/590x/1551741_1.jpg?r=1642506147552)
Nick Kyrgios stuns Australian Open crowd with underarm tweener serve vs Liam Broady | Tennis | Sport | Express.co.uk
![Is an underarm serve really that effective for Nick Kyrgios? Maths professor finally reveals the truth - Tennishead Is an underarm serve really that effective for Nick Kyrgios? Maths professor finally reveals the truth - Tennishead](https://tennishead.net/wp-content/uploads/2019/09/Nick-Kyrgios-underarm-serve-US-Open-2019.jpg)