Roger Federer supports use of underarm serve after Nick Kyrgios tried one vs Rafael Nadal | PerthNow
Roger Federer defends Nick Kyrgios in growing feud with Rafael Nadal
Nick Kyrgios sends Wimbledon crowd wild with underarm serve ace vs Rafael Nadal - Watch | Tennis | Sport | Express.co.uk
Andy Murray defends underarm serve ace at Indian Wells but Nick Kyrgios inevitably enjoyed it
Nick Kyrgios admits trying to hit Rafa Nadal and says he won't apologise after Wimbledon barnstormer
Why Kyrgios's underarm serve was a welcome change
Rafael Nadal, Wound-up, Bests Nick Kyrgios in 4-Set Wimbledon Drama
Nick Kyrgios vs Rafael Nadal Acupulco Open, Aussie's underarm serve video | news.com.au — Australia's leading news site
Watch Nick Kyrgios ace Rafael Nadal with an underhand serve
Nick Kyrgios Surprises Rafael Nadal With Cheeky Underarm-Serve During Their Wimbledon 2019 Second Round Encounter (Watch Video) | 🎾 LatestLY
Wimbledon 2019: Kyrgios vs. Nadal and the Difference Between an Entertainer and a Champion | The New Yorker
Tennis: Steady Nadal beats animated Kyrgios in 4 at Australian Open - The Mainichi
Kyrgios surprising Nadal with underarm serve in Wimbledon - Tennis Tonic - News, Predictions, H2H, Live Scores, stats
Is an underarm serve really that effective for Nick Kyrgios? Maths professor finally reveals the truth - Tennishead
Nick Kyrgios lacks respect for public, rivals and himself, says Rafael Nadal | Sport | The Times
Australian tennis star Nick Kyrgios fools ANOTHER opponent with a cheeky underarm serve | Daily Mail Online
Wimbledon: Nadal beats Kyrgios, Tomic fined, Serena survives on Day 4 - Sports Illustrated
Underarm or underhanded? Nick Kyrgios serve stokes debate | Sports News,The Indian Express
Nick Kyrgios uses cheeky tactic to win second set against Dominic Thiem at Australian Open 2021 | 7NEWS
 "Wimbledon 2019: Nick Kyrgios' Underarm Serve Leaves Rafael Nadal, Wimbledon Crowd Surprised. Watch | Tennis News")
Wimbledon 2019: Nick Kyrgios' Underarm Serve Leaves Rafael Nadal, Wimbledon Crowd Surprised. Watch | Tennis News
Nick Kyrgios explains why he hit undearm serve against Rafael Nadal
Nick Kyrgios underhand serves vs Rafael Nadal at Wimbledon (video) - Sports Illustrated
Wimbledon 2019: Watch Nick Kyrgios enrage Rafael Nadal with underarm serve during second-round match | The Independent | The Independent
