US golfer Tiger Woods on the driving range during practice for the 2013 British Open Golf Championship at Muirfield Golf Course in Gullane, eastern Scotland on July 14, 2013 ahead of the 142nd Open Championship which begins on July 18. It will be the 16th time the East Lothian course has held the championship, Ernie Els will defend the trophy he won at Royal Lytham last year, while Tiger Woods will look to win his 15th major title. AFP PHOTO / PAUL ELLIS        (Photo credit should read PAUL ELLIS/AFP/Getty Images)