First Round of 2013 BMW Championship at Conway Farms - wgaesf
Dustin Johnson hits his second shot at the 18th hole during the first round of the 2013 BMW Championship at Conway farms in Lake Forest IL on Thursday Sept. 12, 2011. WGA/Charles Cherney

Dustin Johnson hits his second shot at the 18th hole during the first round of the 2013 BMW Championship at Conway farms in Lake Forest IL on Thursday Sept. 12, 2011. WGA/Charles Cherney