Northern Trust Open PGA golf tournament starts 1st round

Northern Trust Open PGA golf tournament starts 1st round

Stewart Cink tees off on the twelfth hole during the first round of the Northern Trust Open PGA golf tournament at Riviera Country Club in Pacific Palisades, Los Angeles February 4, 2010.

Adam Scott of Australia tees off on the third hole during the first round of the Northern Trust Open PGA golf tournament at Riviera Country Club in Pacific Palisades, Los Angeles February 4, 2010.

Y.E. Yang of South Korea tees off on the twelfth hole during the first round of the Northern Trust Open PGA golf tournament at Riviera Country Club in Pacific Palisades, Los Angeles February 4, 2010.

Rory Sabbatini of South Africa tees off on the twelfth hole during the first round of the Northern Trust Open PGA golf tournament at Riviera Country Club in Pacific Palisades, Los Angeles February 4, 2010.

Phil Mickelson of the U.S. chips onto the second green during the first round of the Northern Trust Open PGA golf tournament at Riviera Country Club in Pacific Palisades, Los Angeles February 4, 2010.
(Reuters)