Golf: Drivers tamed by British Open rule

Golf drivers with an excessive spring-like effect on the club face will be banned at next year's British Open.

The Royal and Ancient has followed its counterpart in the United States - the US Golf Association - by introducing a "coefficient of restitution" (COR), which effectively governs how fast the ball leaves the club face.

The new coefficient of 0.83, which is designed to limit the ever-increasing driving distances of leading professionals, will not apply to amateur events in Britain.