Putters: Golf chiefs plan limits on belly and broomhandle clubs
Golf's ruling bodies have proposed to limit the use of long-handled putters.
Players would be banned from anchoring any strokes to a pivot point, such as their chest or midriff, from 2016.
Golf's rule change explained
Three of the past five majors have been won by players using longer putters, but the Royal & Ancient Club and US Golf Association want changes.
"Our concern is that anchored strokes threaten to supplant traditional putting strokes," said R&A chief executive Peter Dawson.
Extended putters would still be allowed but would have to be used as a free swing away from the body.
Anyone who breached the new rule would be subject to a two-shot penalty in strokeplay or the loss of a hole in matchplay.
Traditionalists argue that anchoring putts has changed the fabric of the game, reducing the effect of nerves - twitches in the putting stroke known in golf as "the yips" - and helping provide a pendulum motion that can improve consistency.
"If you anchor one end of the putter to your body, it is taking away one of those frailties," said Dawson.
"The majority of golfers will understand why we have done this. There will be some players whose careers have become dependent on the anchored putting stroke. They do have three years to find another method if the rule change is confirmed."
Iain CarterBBC golf correspondent
"There should certainly be no asterisk alongside the major wins of Simpson, Bradley and Els. They were playing within the rules of the day, just as Bobby Jones was when he was winning his majors with a concave sand wedge that was later outlawed."
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