Titleist Brand Ambassador S.Y. Noh grinds away on the Congressional range. Stay tuned for more pics tomorrow, thanks!

Dave Phillips of the Titleist Performance Institute looks on as Titleist Brand Ambassador Zach Johnson tests a new Vokey Design Spin Milled wedge to help with the heavy sand in Congressional's bunkers.

Rough has also been known to be a bit on the lengthy side at U.S. Opens.

Here he rips his Titleist 910D3 8.5º (Graphite Design Tour AD DI-6) driver down the middle of the fairway.

Congressional will be playing as a par-71 this week at 7,574 yards.

Titleist Brand Ambassador Matteo Manassero has put in an order for some fresh grooves.

Bob Vokey to the rescue! (We'll explain more in the next slide...)

This player accidentally dinged the face of his trusty Vokey wedge with a rock and asked Bob to see if he could repair the damage.

Titleist Brand Ambassador Nick Watney catches up with Titleist's Rick Nelson, Director of Wedge Development.

Titleist Brand Ambassador Kevin Na put in some Titleist 910 hybrid work with Senior Club Fitting Analyst Dino Antenucci. Kevin is trying to determine the best mixture of lofts in his hybrids and fairway metals for the week.