Bodyline, also known as Fast Leg Theory, was a cricketing tactic devised by the English cricket team for their 1932–33 tour of Australia, specifically to combat the extraordinary batting skill of Australia's Don Bradman. It involved bowlers deliberately aiming the cricket ball at the bodies of batsmen. This caused several injuries to Australian players and led to ill-feeling between the countries that rose to diplomatic levels. Following the 1932–33 series, several authors, including many of the players involved in it, released books expressing various points of view about Bodyline. Many argued that it was a scourge on cricket and must be stamped out, while some claimed not to understand what all the fuss was about. Several laws of cricket were changed to prevent similar tactics being used again.