STRAFFAN, IRELAND - MAY 19: Danny Willett of England hits his tee-shot on the 18th hole during the first round of the Dubai Duty Free Irish Open Hosted by the Rory Foundation at The K Club on May 19, 2016 in Straffan, . (Photo by Andrew Redington/Getty Images) /
AVONDALE, LA – MAY 02: Byeong-Hun An of Korea hits his tee shot on the 18th hole during a continuation of the third round of the Zurich Classic at TPC Louisiana on May 2, 2016 in Avondale, Louisiana. (Photo by Stacy Revere/Getty Images) /
Last season’s European Tour rookie of the year, Byeong Hun An, is back to defend the title he stunned everyone by winning a year ago.