Rafael Nadal pulls out of next week 's event in Buenos Aires . The ATP said it was not aware that the Spaniard had been forced to pull out. ` Since I came back from the Australian Open with my back injury I have not been able to train , '' he said in Thursday 's video , which came against a backdrop of several trophies . Nadal has not trained since a back injury plagued him in January 's Australian Open final .
Rafael Nadal pulls out of next week 's event in Buenos Aires . The ATP said it was not aware that the Spaniard had been forced to pull out. Nadal has not trained since a back injury plagued him in January 's Australian Open final .