Every golfer knows that in an important match, it's almost always going to come down to making a key putt or two.
No matter how well you've been hitting the ball off the tee or how softly your approach shots have been landing on the green, you can't score well if you don't feel good when you are standing over your putts.
Some golfers who have tons of talent and confidence in all other aspects of the game lose their belief in themselves when they are standing over a 10-foot putt that they need in a round of golf.
On the pro tour, this is likely going to cost the best golfers the chance to win or contend in top tournaments.
While it's possible to win occasionally when you don't have a strong belief in your putting ability, it makes an already difficult game that much harder to play when confidence is lacking.
Here's a look at six of the least confident putters—among players who have had some level of success—on the PGA tour.