Dufner among 8 past Zurich champs in Big Easy - Article Photos 4/6

Tianlang Guan tees off on the ninth hole during the Zurich Classic pro-am golf tournament at the TPC Louisiana on Wednesday, April 24 , 2013 in Avondale, La. (AP Photo/Nola.com, Michael DeMocker) MAGS OUT; NO SALES; USA TODAY OUT; THE BATON ROUGE ADVOCATE OUT