Jason Dufner celebrates after sinking a 25-foot putt on the 18th green to win the PGA Byron Nelson Championship golf tournament Sunday, May 20, 2012, in Irving, Texas. (AP Photo/Tony Gutierrez)
Dufner nabs 2nd victory in 4 weeks
Jason Dufner stood on the 18th green, his lips together seemingly trying to suppress a smile while his playing partner finished the hole to end the Byron Nelson Championship.
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Dufner takes first PGA Tour win
