John Isner explains his secrets behind a powerful tennis serve
Telegraph, 28 Jun 2022
In a Telegraph exclusive from 2018, professional tennis player, John Isner explains the secrets behind his powerful serve.
Isner is playing Andy Murray in the second round of matches today at Wimbledon.
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Isner is playing Andy Murray in the second round of matches today at Wimbledon.
Subscribe to The Telegraph with our special offer: just £1 for 3 months. Start your free trial now:
https://www.telegraph.co.uk/customer/subscribe/digitalsub/3for1/?WT.mc_id=tmgoff_pvid_conversion-subscription_editorial-iniative_03-22_EGW-13_organic_youtube
Get the latest headlines: https://www.telegraph.co.uk/
Telegraph.co.uk and YouTube.com/TelegraphTV are websites of The Telegraph, the UK's best-selling quality daily newspaper providing news and analysis on UK and world events, business, sport, lifestyle and culture.
