Here are 10 players to watch headed into the 2017 PGA Championship.
1. Rory McIlroy, Northern Ireland
2. Jordan Spieth, United States
3. Dustin Johnson, United States
4. Hideki Matsuyama, Japan
5. Rickie Fowler, United States
6. Brooks Koepka, United States
7. Paul Casey, England
8. Jon Rahm, Spain
9. Jason Day, Australia
10. Charley Hoffman, United States
