Dylan Gee 🇬🇧🇳🇿 on Instagram: "Slice serve training 🎾 Yes, you should pronate on your serve! * Give these training exercises a go when serving from different areas of the court. The closer you are to the net the more angle you are able to apply. Working further back to the baseline over time once you gain confidence. #tennis #tennistips #tennisserve #tennislife #indonesia #medan #tenniswithdylan"