Round 1 at 2012 Northern Trust Open

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Phil Mickelson fired a five-under 66 in the first round to take the lead at the Northern Trust Open.
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Mickelson is coming off a dramatic victory last week at the Pebble Beach Pro-Am.
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World No. 1 Luke Donald opened with an uneventful one-under 70.
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Donald's round included two birdies and one bogey on the difficult course at Riviera Country Club.
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Bubba Watson also finished with a 71 in the first round.
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Watson made four birdies and three bogeys.
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Jonathan Byrd held the clubhouse lead when he finished with a three-under 68.
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Spencer Levin was two over on the day.
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Rickie Fowler continued his early season struggles with a 75 on Thursday.
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Dustin Johnson put together a solid round of 71.
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Justin Rose bested Johnson's score by one, tying with Luke Donald and Bubba Watson.
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Ryo Ishikawa started his round with 13 straight pars before making a bogey at 14.