Unheralded American Doug Barron has become the first player to be disqualified by the PGA Tour for taking performance-enhancing drugs.
The 40-year-old has been given a one-year suspension.
He is the first professional to fail a drugs test since the PGA and European Tours began their anti-doping programs in July 2008.
"I would like to apologize for any negative perception of the Tour and its players resulting from my suspension," Barron said in a statement on the PGA Tour official Web site www.pgatour.com.
"I want my fellow Tour members and the fans to know that I did not intend to gain an unfair competitive advantage or enhance my performance while on Tour."