From the ATP website:
Biggest Grand Slam Upsets Of 2014, aka, the List Which Includes Nadal/Kyrgios.
EDIT: I'll provide the list here, but you'll need to take the link to read the analysis.
1. Nick Kyrgios d. Rafael Nadal 7-6(5), 5-7, 7-6(5), 6-3, Wimbledon fourth round
2. Ernests Gulbis d. Roger Federer 6-7(5), 7-6(3), 6-2, 4-6, 6-3, Roland Garros fourth round
3. Andrey Kuznetsov d. David Ferrer 6-7(5), 6-0, 3-6, 6-3, 6-2, Wimbledon second round
4. Guillermo Garcia-Lopez d. Stan Wawrinka 6-4, 5-7, 6-2, 6-0, Roland Garros first round
5. Roberto Bautista Agut d. Juan Martin del Potro 4-6, 6-3, 5-7, 6-4, 7-5, Australian Open second round
Biggest Grand Slam Upsets Of 2014, aka, the List Which Includes Nadal/Kyrgios.
EDIT: I'll provide the list here, but you'll need to take the link to read the analysis.
1. Nick Kyrgios d. Rafael Nadal 7-6(5), 5-7, 7-6(5), 6-3, Wimbledon fourth round
2. Ernests Gulbis d. Roger Federer 6-7(5), 7-6(3), 6-2, 4-6, 6-3, Roland Garros fourth round
3. Andrey Kuznetsov d. David Ferrer 6-7(5), 6-0, 3-6, 6-3, 6-2, Wimbledon second round
4. Guillermo Garcia-Lopez d. Stan Wawrinka 6-4, 5-7, 6-2, 6-0, Roland Garros first round
5. Roberto Bautista Agut d. Juan Martin del Potro 4-6, 6-3, 5-7, 6-4, 7-5, Australian Open second round