Former world No. 1 John McEnroe said it was “amazing” what Rafael Nadal pulled off at the Australian Open as he thought Daniil Medvedev should have won the title. World No. 2 Medvedev was up by two sets in the Australian Open final before Nadal stormed to back to win the final and lift his second Australian Open title. Medvedev was up by two sets, had a 3-2 lead in the third set and three consecutive break points. Somehow Nadal dug himself out of the uncomfortable situation and went on to claim a stunning five-set victory. “Obviously Rafa pulled off an amazing feat,” McEnroe said.“And I also like Medvedev – I thought he should have won it. “We’ll see how he reacts moving forward and what other gu …