Rafael Nadal could not have asked for a better start to the season. Returning after a serious foot injury, the Spanish phenomenon won the Melbourne ATP 250 and especially the Australian Open. In a tournament that had often been hostile to him in the past (his first triumph dates back to 2009), the former world number 1 achieved one of the most unexpected feats of his entire career.After surviving two authentic marathons against Denis Shapovalov and Matteo Berrettini, Rafa achieved a real masterpiece in the final. Two sets down against Daniil Medvedev on Rod Laver Arena, the 35-year-old from Manacor cracked hi …