Rory McIlroy


AUGUSTA, Ga. (Sporting Alert) — Dustin Johnson has withdrawn from the Masters due to a lingering back problem that he unfortunately aggravated. The 2012 Masters Golf Tournament will be live on ESPN3.com. Live coverage will also be on the Masters Official Website | Live Leader Board  Watch Masters Preview Video Coverage On Tuesday, Johnson’s agent David Winkle revealed the he aggravated the injury while lifting a jet ski a week ago. Winkle said the world No.…