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Off spin is a type of finger spin bowling in the sport of cricket. A bowler who uses this technique is called an off spinner. Off spinners are right-handed spin bowlers who use their fingers to spin the ball from a right-handed batsman's off side to the leg side (that is, towards the right-handed batsman, or away from a left-handed batsman). This contrasts with leg spin, in which the ball spins from leg to off and which is bowled with a very different action.
A left-handed bowler who bowls with the same action as an off spinner is known as a left-arm orthodox spinner. While the orthodox spinner has the same action as an off-spinner, the ball itself spins in the opposite direction (akin to a right arm leg spinner).
Off spin is generally considered less difficult to play than leg spin, as off breaks typically spin less than leg breaks, and do not generally possess the same loopy, potentially deceptive flight. In addition, off spinners tend to have a smaller repertoire of deliveries to choose from. However, the off spinner often bowls faster and more accurately than a leg spinner, and can therefore deceive the batsman with changes in the pace of the ball. Another common weapon of the off spinner is the arm ball, which does not spin but goes straight on "with the arm". More skilled offspinners also have the topspinner. Aside from these variations in spin, varying the speed, length and flight of the ball are also important for the off spinner.
Although rare now, in the past there were bowlers who used the off-break action who deliberately did not impart any considerable spin on the ball but relied on line and length (or even speed variations) to frustrate batsmen. They endeavoured to pitch the ball in an area that the batsman was unable to play a scoring shot, even making last moment adjustments to "follow" a batsman should they move within the crease to negate the bowlers tactics. Whilst this is primarily a defensive style, wickets were achieved by forcing a batsman to make a rash stroke or even bowling at the stumps instead of the retreating batsman. Another wicket taking method was to impart more spin on the ball than usual, and surprise the batsman. An exponent of this style of bowling was "Flat" Jack Simmons who played for Lancashire and Tasmania in the 1970s and 1980s. With the advent of limited overs cricket promoting more adventurous batting styles and the use of ever heavier bats this style of bowling has declined, although some off-spinners will still use this tactic when the pitch is offering very little or no turn. It is a tactic often used by Kane Williamson when he bowls occasionally in limited overs format because his bowling style tends to be flatter and faster.
Notable off spinners
Notable off spinners include, Muttiah Muralitharan, of Sri Lanka,who has the most wickets in both ODIs and Test matches,  two of the legendary Indian spin quartet - E. A. S. Prasanna and Srinivas Venkataraghavan, also Harbhajan Singh and Ravichandran Ashwin of India, Saqlain Mushtaq and Saeed Ajmal of Pakistan, Jim Laker and Graeme Swann of England, and Nathan Lyon of Australia. Saqlain Mushtaq was credited with the invention of the "doosra", which is bowled with a similar-looking action to the off break but spins the opposite way, just as the leg spinner's googly turns the opposite way from his stock ball.
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- "How to bowl left-arm spin". BBC Sport. Retrieved 16 December 2012.
- Eastaway, Rob (2003). What is a googly?. Robson Books. p. 118. ISBN 1-86105-629-X.
- Eastaway, Rob (2003). What is a googly?. Robson Books. p. 141. ISBN 1-86105-629-X.
- "Records / Test matches / Bowling records / Most wickets in career". ESPNcricinfo. Retrieved 16 December 2012.
- "Records / One-Day Internationals / Bowling records / Most wickets in career". ESPNcricinfo. Retrieved 16 December 2012.
- Cricinfo staff (29 April 2009). "I can teach Australians the doosra - Saqlain". ESPNcricinfo. Retrieved 16 December 2012.