Was this a choke from Del Potro? Or was it NID he'd lose to Nadal on clay in Spain?
Great bump. IMO, this was the best clay match of the past few years, sensational stuff.
del Potro didn't choke at all, he was just outlasted by Nadal really, his stamina was really poor at the time. He played lights out for some stretches though and fought his heart out. Some highlights:
If you just want to see Nadal's best points: