But back to the AO, it was the final of 2014 against stan that rocked Rafa more than anything I've ever seen, he was going into that final playing incredible tennis off the back of a second USO victory, and for him to encounter that injury along with Stan coming of age....
This was the one match that caused all of the trauma of last part of 2014, 2015 and 2016 combined, it was because of that final. It destroyed his intensity and confidence, i think even he had incredible belief that he was going to finally win a second AO in that final against Stan
Nadal insists he was injured going into that final, but it didn't become visible (at least to this viewer) until he was down a set and a break. The injury then contributed to Wawrinka losing the 3rd due to nerves. Without the back injury that final was looking like a straight setter to Wawrinka.