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Keegan Bradley scratches his head after leaving a putt short on the first green during the first round of the Byron Nelson Championship golf tournament Thursday, May 16, 2013, in Irving, Texas. Bradley has set the TPC Four Seasons course record with a 10-under par 60 in the opening round (AP Photo/Tony Gutierrez)

Keegan Bradley scratches his head after leaving a putt short on the first green during the first round of the Byron Nelson Championship golf tournament Thursday, May 16, 2013, in Irving, Texas. Bradley has set the TPC Four Seasons course record with a 10-under par 60 in the opening round (AP Photo/Tony Gutierrez)