Masters practice round (16 images)

Tiger Woods (L), Dustin Johnson (C) and Guan Tianlang (L), of China, line up putts on the 16th hole during a practice round before the Master golf tournament at Augusta National Golf Club on April 8, 2013 in Augusta, Georgia. UPI/Kevin Dietsch

Rory McIlroy walks down the 7th fairway during a practice round before the Master golf tournament at Augusta National Golf Club on April 8, 2013 in Augusta, Georgia. UPI/Kevin Dietsch

Ernie Ells hits out of a bunker on the 2nd hold during a practice round before the Master golf tournament at Augusta National Golf Club on April 8, 2013 in Augusta, Georgia. UPI/Kevin Dietsch

Mark O'Meara catches a golf ball thrown by his caddie on the driving range during a practice round before the Masters golf tournament at Augusta National Golf Club on April 8, 2013 in Augusta, Georgia. The 77th Masters tournament will begin on Thursday. UPI/Kevin Dietsch