He collected a whopping £147,000 for compiling the fourth 147 break in World Championship history in 1997, but it would not be outlandish to suggest Ronnie O'Sullivan has earned far, far more from that life-enriching, awe-inspiring maximum than he could ever have imagined. Studying the footage of failing to put a foot wrong on Monday 21 April 1997, even O'Sullivan – a record 38-time ranking event winner with six world titles, seven Masters, 15 competitive 147s and over 1150 centuries to his name – probably wonders how he reached the potting promised land in only his fifth year at the Crucible Theatre.