Golf is banning the putting stroke used by three of the past five major champions.
The sport's ruling bodies announced a new rule on Wednesday that would make it illegal to anchor the club in making a stroke. The rule is aimed at belly putters and long putters that are pressed against the body.
Keegan Bradley was the first player to win a major with the belly putter at the 2011 US PGA Championship. Webb Simpson and Ernie Els used belly putters to win majors this year.
Officials say the golf stroke should be a free swing, and anchoring a club eliminates part of the skill.
The rule would apply to golfers at every level. It would not take effect until 2016.