For a golfer who has been stung by heartache and disappointment in several previous Majors, the 31-year-old showed remarkable focus, especially after a rules infraction situation cropped up on the fifth green. As he prepared for a short par putt, Johnson's ball moved a millimetre. He immediately alerted his walking rules official, Mark Newell, and told him he didn't cause the ball to move. Newell initially agreed with Johnson, but seven holes later, officials Jeff Hall and Thomas Pagel informed Dustin of a possible infraction of Rule 18-2, one that would be reviewed upon the completion of his round.