Fans have taken to Twitter to compare Cressy’s ace speed to that of an underarm serve, made famous in recent years by Nick Kyrgios.
“@NickKyrgios is jealous now!” one fan replied to the astounding hawkeye graphic of the 26mph ace.
Another referenced WTA former world No 5 Sara Errani, who famously once his a 49mph second serve as they joked: “Still faster than Errani’s serve!”
Former world No 12 Sabine Lisicki also commented on the slow ace, saying: “We should add this one to the service practice”.