SAN DIEGO—Whether it was destiny or karma was of no relevance to Jon Rahm. He won the U.S. Open on Sunday at Torrey Pines, the perfect time and the perfect place to become a major champion. How it unfolded was beyond his dreams. One shot behind and running out of holes, Rahm made a sweeping, left-to-right birdie putt from 25 feet on the 17th hole to tie for the lead, and closed with another bending 18-foot birdie putt that gave him a one-shot victory over hard-luck Louis Oosthuizen. No one had ever birdied the last two holes to win the U.S. Open by one shot in the previous 120 editions of the toughest test in golf until Rahm’s storybook finish. “It had to happen in a beautiful setting like this,” he said. At Torrey Pines, where he made a 50-foot eagle putt on the final hole to clinch his first …