Peter Bills: Finest of lines divides glory and disaster
The intricacies of sport never cease to remind us that minuscule margins can prove so decisive. The shot in soccer that hits a crossbar and bounces down onto or over the line -- depending upon the referee's view -- can have a cataclysmic effect upon a team's fortunes.
In golf, a player can perform at his peak for four long days, 72 holes in all, and miss out on victory in a major tournament by a single putt that brushes the hole yet stays out.
Last weekend's opening round of the Six Nations Championship reminded us that rugby is as prone to these marginal decisions as any other game.