Nadal dispatched a big-serving American 6-4 7-6 to pierce into a semi-finals in Beijing.
There he will accommodate Grigor Dimitrov, who kick Roberto Bautista Agut progressing today.
But it was a overwhelming shot in a second-set tie-break that will be remembered many from Nadal’s victory.
Isner sent down a standard rocket offer to open a breaker that Nadal got a pole to.
Isner afterwards approached a net, looking to tighten a indicate down early with his outrageous wing-span.