January 5, 1937. Don Bradman was under enormous pressure after losing his first two Tests as captain. He was plagued by a rare loss of form, discontent among players, press and public and a devastating personal tragedy. Yet, at Melbourne, he turned the series around with a blemish-less innings of 270. Arunabha Sengupta recalls the innings that had been ranked by Wisden as the best of all time.