Stan Wawrinka (SUI) against Feliciano Lopez (ESP) during Round One match on the second day of the ATP Aegon Championships at the Queen's Club in west London on June 20, 2017 (Photo by Kieran Galvin/NurPhoto via Getty Images)
Stan Wawrinka (SUI) against Feliciano Lopez (ESP) during Round One match on the second day of the ATP Aegon Championships at the Queen's Club in west London on June 20, 2017 (Photo by Kieran Galvin/NurPhoto via Getty Images)