Amateur Tianlang Guan, of China, tees off on the eighth hole during the first round of the Masters Tournament at Augusta National Golf Club on Thursday, April 11, 2013, in Augusta, Ga. (AP Photo/David Goldman)
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Amateur Tianlang Guan, of China, holds up his ball after putting the eighth green during the first round of the Masters Tournament at Augusta National Golf Club on Thursday, April 11, 2013, in Augusta, Ga. (AP Photo/David Goldman)
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Amateur Tianlang Guan, of China, picks up his tee after hitting off the ninth hole during the first round of the Masters Tournament at Augusta National Golf Club on Thursday, April 11, 2013, in Augusta, Ga. (AP Photo/David Goldman)
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Amateur Tianlang Guan, of China, looks down the eighth fairway before teeing off during the first round of the Masters Tournament at Augusta National Golf Club on Thursday, April 11, 2013, in Augusta, Ga. (AP Photo/David Goldman)
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Amateur Tianlang Guan, of China, tees off on the eighth hole during the first round of the Masters Tournament at Augusta National Golf Club on Thursday, April 11, 2013, in Augusta, Ga. (AP Photo/David Goldman)
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Amateur Tianlang Guan, of China, putts on the ninth green during the first round of the Masters Tournament at Augusta National Golf Club on Thursday, April 11, 2013, in Augusta, Ga. (AP Photo/David Goldman)
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Tianlang Guan acknowledges the gallery after putting on No. 8 during the first round of the 2013 Masters Tournament at Augusta National Golf Club on Thursday, April 11, 2013, in Augusta, Ga. (EMILY ROSE BENNETT/STAFF)
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Tianlang Guan reacts to a putt on No. 8 during the first round of the 2013 Masters Tournament at Augusta National Golf Club on Thursday, April 11, 2013, in Augusta, Ga. (EMILY ROSE BENNETT/STAFF)
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Tianlang Guan, left, and Matteo Manassero prepare to putt on the No. 8 green during the first round of the 2013 Masters Tournament at Augusta National Golf Club on Thursday, April 11, 2013, in Augusta, Ga. (EMILY ROSE BENNETT/STAFF)
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Tianlang Guan tees off on No. 2 during the first round of the 2013 Masters Tournament at Augusta National Golf Club on April 11, 2013, in Augusta, Ga. (JON-MICHAEL SULLIVAN/STAFF)
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Tianlang Guan hits an approach shot to the 15th green during the first round of the 2013 Masters Tournament at Augusta National Golf Club on Thursday, April 11, 2013, in Augusta, Ga. (EMILY ROSE BENNETT/STAFF)
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Tianlang Guan tees off on No. 2 during the first round of the 2013 Masters Tournament at Augusta National Golf Club on April 11, 2013, in Augusta, Ga. (JON-MICHAEL SULLIVAN/STAFF)
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Tianlang Guan lines up a putt on No. 4 during the first round of the 2013 Masters Tournament at Augusta National Golf Club on April 11, 2013, in Augusta, Ga. (JEFF JANOWSKI/STAFF)
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Tianlang Guan lines up a putt on No. 18 during the first round of the Masters Tournament at Augusta National Golf Club on Thursday, April 11, 2013, in Augusta, Ga. (JEFF JANOWSKI/STAFF)
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Tianlang Guan reacts after his putt on No. 18 during the first round of the Masters Tournament at Augusta National Golf Club on Thursday, April 11, 2013, in Augusta, Ga. (JEFF JANOWSKI/STAFF)
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Tianlang Guan reacts after his putt on No. 18 during the first round of the Masters Tournament at Augusta National Golf Club on Thursday, April 11, 2013, in Augusta, Ga. (JEFF JANOWSKI/STAFF)
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Tianlang Guan reacts after his putt on No. 18 during the first round of the Masters Tournament at Augusta National Golf Club on Thursday, April 11, 2013, in Augusta, Ga. (JEFF JANOWSKI/STAFF)
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Tianlang Guan reacts after his putt on No. 18 during the first round of the Masters Tournament at Augusta National Golf Club on Thursday, April 11, 2013, in Augusta, Ga. (JEFF JANOWSKI/STAFF)
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Tianlang Guan reacts after his putt on No. 18 during the first round of the Masters Tournament at Augusta National Golf Club on Thursday, April 11, 2013, in Augusta, Ga. (JEFF JANOWSKI/STAFF)
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Tianlang Guan lines up a putt on No. 18 during the first round of the Masters Tournament at Augusta National Golf Club on Thursday, April 11, 2013, in Augusta, Ga. (JEFF JANOWSKI/STAFF)
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Tianlang Guan reacts after his putt on No. 18 during the first round of the Masters Tournament at Augusta National Golf Club on Thursday, April 11, 2013, in Augusta, Ga. (JEFF JANOWSKI/STAFF)
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Tianlang Guan reacts after his putt on No. 18 during the first round of the Masters Tournament at Augusta National Golf Club on Thursday, April 11, 2013, in Augusta, Ga. (JEFF JANOWSKI/STAFF)
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Tianlang Guan reacts after his putt on No. 18 during the first round of the Masters Tournament at Augusta National Golf Club on Thursday, April 11, 2013, in Augusta, Ga. (JEFF JANOWSKI/STAFF)
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Tianlang Guan reacts after his putt on No. 18 during the first round of the Masters Tournament at Augusta National Golf Club on Thursday, April 11, 2013, in Augusta, Ga. (JEFF JANOWSKI/STAFF)
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Tianlang Guan lines up a putt on No. 3 during the first round of the 2013 Masters Tournament at Augusta National Golf Club on April 11, 2013, in Augusta, Ga. (JEFF JANOWSKI/STAFF)
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Tianlang Guan acknowledges the gallery after putting on No. 17 during the first round of the 2013 Masters Tournament at Augusta National Golf Club on Thursday, April 11, 2013, in Augusta, Ga. (JON-MICHAEL SULLIVAN/STAFF)