MELBOURNE: Rafael Nadal returns to the scene of one of his greatest Grand Slam triumphs when the Australian Open begins Monday, with women’s number one Iga Swiatek headlining the night session on the showpiece Rod Laver Arena. A year ago, the 36-year-old Spaniard defied a long injury layoff and a two-set deficit in the final against Daniil Medvedev to win his second Melbourne