By Jon Wertheim The Spaniard’s recovery from a two-set deficit in Sunday’s nearly six-hour Australian Open final thriller against Daniil Medvedev might be the best win of his career. We sure have come a long way in two weeks. Cleaning out the notebook (or notes app) after a cracker of an Australian Open. 1. Nadal pulls ahead for the first timeRafa Nadal takes over the men’s all-time Grand Slam singles lead, winning his 21st by taking the title in extraordinary fashion—a nearly six-hour match, coming back from two sets down against the hottest player in the draw, Daniil Medvedev. This isn’t the…