Phil Mickelson has described winning the Open Championship as the biggest challenge of his career following his victory at Muirfield.
"Winning this championship was always the biggest challenge of my career," the 43-year-old told BBC Sport.
"I didn't know if I ever had developed the right skills for links golf. You just never know what's going to happen.
"This is some of the best golf I have ever played and by far the best I have ever putted. I made so many putts today and every iron shot, when I looked up, was on the green."
Mickelson has now won five Majors since turning professional in 1992.