Rafael Nadal's days of living dangerously at Wimbledon were finally ended by a 144th-ranked teenage tyro who came armed with an inexhaustible supply of aces and wonder-shots.
For the fourth match in a row at this year's grasscourt championships, the Spaniard surrendered the first set.
However, unlike Martin Klizan, Lukas Rosol and Mikhail Kukushkin, 19-year-old Australian wildcard Nick Kyrgios proved to be no pushover and Nadal ran out of Wimbledon lives as he went down fighting in a 7-6(5) 5-7 7-6(5) 6-3 fourth-round defeat.
Kyrgios fired down 37 aces and played a fearless brand of tennis to topple the world number one following two hours 58 minutes of exhilarating action.
It was the first time since 1992 a man ranked outside the top 100 had beaten a world number one.