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FedEx St. Jude Classic - Final Round

MEMPHIS, TN - JUNE 10: Dustin Johnson waves to the crowd after finishing on the 18th hole during the final round the FedEx St. Jude Classic at TPC Southwind on June 10, 2012 in Memphis, Tennessee. He won the tournament at 9 under par. (Photo by Andy Lyons/Getty Images)

Johnson wins St. Jude Classic

Dustin Johnson won the St. Jude Classic on Sunday June 10, in his second event after a back injury cost him nearly three months away from the PGA Tour, shooting a 4-under 66 that held off John Merrick by a stroke.