We've spotted Titleist Brand Ambassador Chinnarat Phadungsil's bag.

And there's Chinnarat, teeing off on the second days play. 

Which Titleist Brand Ambassador has emptied his entire bag on the range?

Titleist Brand Ambassador Digvijay Singh getting some practice in on the range. Singh finished 4th this week, 1 of only 4 players to end the week with an under par total score.

Titleist Brand Ambassador Matthew Rosenfeld getting some practice in on the putting green.  

Its the tournaments eventual winner Berry Henson hitting balls at the range on Day 2. Do you think he realizes at this point that this week is going to be his week?

And there's Gerald himself, spending some time studying his yardage book.