Luke Campbell Donald is an English

England

England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west; the Irish Sea is to the north west, the Celtic Sea to the south west, with the North Sea to the east and the English Channel to the south separating it from continental...

 professional golfer

Professional golfer

In golf the distinction between amateurs and professionals is rigorously maintained. An amateur who breaches the rules of amateur status may lose his or her amateur status. A golfer who has lost his or her amateur status may not play in amateur competitions until amateur status has been reinstated;...

 who is the current World Number One. He plays mainly on the U.S. based PGA Tour

PGA Tour

The PGA Tour is the organizer of the main men's professional golf tours in the United States and North America...

 but is also a member of the European Tour. In 2006 he reached the top ten in the Official World Golf Rankings

Official World Golf Rankings

The Official World Golf Ranking is a system for rating the performance level of male professional golfers...

 for the first time in his career. In January 2007, he was briefly the highest ranked European golfer. In May 2011 Donald became number one in the World Rankings after winning the BMW PGA Championship.