Haas clinches Riviera win in sudden-death playoff

Bill Haas clinched his fourth PGA Tour title by beating fellow Americans Phil Mickelson and Keegan Bradley in a gripping sudden-death playoff for the Northern Trust Open Sunday.

Northern Trust Open - Final Round

PACIFIC PALISADES, CA - FEBRUARY 19: Bill Haas hits his tee shot on the 12th hole during the final round of the Northern Trust Open at Riviera Country Club on February 19, 2012 in Pacific Palisades, California. (Photo by Stephen Dunn/Getty Images)

Northern Trust Open - Final Round

PACIFIC PALISADES, CA - FEBRUARY 19: Luke Donlad of England his a driver on the second hole during the fourth round of the Northern Trust Open at the Riviera Country Club on February 19, 2012 in Pacific Palisades, California. (Photo by Harry How/Getty Images)

Northern Trust Open - Final Round

PACIFIC PALISADES, CA - FEBRUARY 19: Jonathan Byrd hits driver on the second tee during the fourth round of the Northern Trust Open at the Riviera Country Club on February 19, 2012 in Pacific Palisades, California. (Photo by Harry How/Getty Images)

Northern Trust Open - Final Round

PACIFIC PALISADES, CA - FEBRUARY 19: Phil Mickelson reacts to a bogie on the eighth hole during the fourth round of the Northern Trust Open at the Riviera Country Club on February 19, 2012 in Pacific Palisades, California. (Photo by Harry How/Getty Images)

Northern Trust Open - Round Three

PACIFIC PALISADES, CA - FEBRUARY 18: Phil Mickelson hits a second shot on the second hole during the third round of the Northern Trust Open at the Riviera Country Club on February 18, 2012 in Pacific Palisades, California. (Photo by Harry How/Getty Images)

Northern Trust Open - Round Three

PACIFIC PALISADES, CA - FEBRUARY 18: Spencer Levin hits a tee shot on the second hole during the third round of the Northern Trust Open at the Riviera Country Club on February 18, 2012 in Pacific Palisades, California. (Photo by Harry How/Getty Images)

Northern Trust Open - Round Three

PACIFIC PALISADES, CA - FEBRUARY 18: Jonathan Byrd hits driver on the second hole during the third round of the Northern Trust Open at the Riviera Country Club on February 18, 2012 in Pacific Palisades, California. (Photo by Harry How/Getty Images)

Northern Trust Open - Round Three

PACIFIC PALISADES, CA - FEBRUARY 18: Phil Mickelson lines up his putt on the second hole during the third round of the Northern Trust Open at the Riviera Country Club on February 18, 2012 in Pacific Palisades, California. (Photo by Harry How/Getty Images)

Northern Trust Open - Round Three

PACIFIC PALISADES, CA - FEBRUARY 18: Phil Mickelson hits driver on the second hole during the third round of the Northern Trust Open at the Riviera Country Club on February 18, 2012 in Pacific Palisades, California. (Photo by Harry How/Getty Images)

Northern Trust Open - Round One

PACIFIC PALISADES, CA - FEBRUARY 16: Phil Mickelson lines up his putt on the 13th hole during the first round of the Northern Trust Open at Riviera Country Club on February 16, 2012 in Pacific Palisades, California. (Photo by Stephen Dunn/Getty Images)

Northern Trust Open - Round One

PACIFIC PALISADES, CA - FEBRUARY 16: Jason Day of Australia hits out of the bunker on the seventh hole during the first round of the Northern Trust Open at the Riviera Country Club on February 16, 2012 in Pacific Palisades, California. (Photo by Harry How/Getty Images)

Northern Trust Open - Round One

PACIFIC PALISADES, CA - FEBRUARY 16: Sergio Garcia of Spain hits a tee shot on the 17th hole during the first round of the Northern Trust Open at the Riviera Country Club on February 16, 2012 in Pacific Palisades, California. (Photo by Jeff Gross/Getty Images)