Related Clues:

• US title won by Vijay Singh in August
• Golf major
• US title won by Vijay Singh last year
• US title won by Phil Mickelson in August
• Sports org. in which J.B. Holmes and Bubba Watson play
• John Deere Classic org
• One of men's golf's majors
• Org. that's most likely to appreciate this puzzle?
• Org. that tests balls and clubs
• Golfer's association
• Open org
• Ryder Cup co-manager
• Nicklaus won it five times
• Jordan Spieth's org
• Org. whose website has a lot of links?