Marcel Siem, Vijay Singh and Justin Thomas will compete in the RBC Heritage Presented by Boeing, South Carolina’s signature golf event, April 13-19 over the famed Harbour Town Golf Links on Hilton Head Island.

They are joined by defending champion Matt Kuchar and past champions Graeme McDowell, Stewart Cink, Glen Day, Jim Furyk, Justin Leonard, Davis Love III, Carl Pettersson, Brandt Snedeker, Tom Watson and Boo Weekley. Other notables committed are Luke Donald, Ernie Els and Brian Harman.

Siem is a German golfer who primarily plays on the European Tour.  The 34-year-old was granted a Sponsors Exemption and is competing at Harbour Town for the first time. He is ranked 65th in the Official World Golf Rankings.

Singh has 34 wins on the PGA TOUR including the 2000 Masters.  The Ponte Vedra Beach, Florida resident has earned more than $68 million during his 3 decades playing professional golf. Known as Fiji’s only world-class golfer, he will be making his 12th appearance at Harbour Town.

Thomas has already earned 4 PGA TOUR top-ten finishes this season.  The Louisville, Kentucky native played golf for the University of Alabama before turning pro in 2013.  He will be making his first start in the RBC Heritage.

Daily tickets and weeklong badges for this year’s tournament are now on sale online at www.rbcheritage.com or by calling the tournament office at 843.671.2448.