The United States Golf Association (USGA) defended its management of a penalty controversy with new champion Dustin Johnson in the final round of the U.S. Open on Sunday. Johnson was penalised a stroke after the USGA deemed the player was responsible for making his ball move on the fifth green, even though a walking official with the American's group absolved the player of any wrongdoing. When Johnson reached the 12th tee, Jeff Hall, USGA managing director of rules and competition, visited the 31-year-old to inform him that he could be assessed a penalty and that the matter would be discussed after the round. More...