Humana Challenge: Dustin Johnson withdraws
Dustin Johnson, the world's eighth-ranked golfer, withdrew Friday after nine holes of his second round at the Humana Challenge golf tournament in La Quinta.
Johnson, who was playing in this event for the third time, had arthroscopic surgery on his right knee in November; until he shot a first-round 72 Thursday on the PGA West Palmer Private course, he had not walked a full 18 holes since the operation.
The 27-year-old, who ranked fifth on the 2011 money-winner list with one win and six top-10 finishes, was four-over par through nine holes Friday at the La Quinta Country Club course when he decided to withdraw.
-- Diane Pucin in La Quinta
Photo: Dustin Johnson watches his approach shot on the first hole during the first round of the Humana Challenge on Thursday. Credit: Scott Halleran / Getty Images