The hard work continues...

Titleist Brand Ambassador Kevin Na works on his short game.

Titleist Brand Ambassador and U.S. Ryder Cup player Rickie Fowler signs some autographs for the fans at Cog Hill.

Rickie heads to the media center for his  pre-tournament press conference.

Rickie talks Ryder Cup with a few national golf writers.

Let's take a closer look at some of Geoff Ogilvy's Titleist irons and Vokey wedges...

His 58-degree Vokey TVD Spin Milled...

Back to the range, where we find Titleist Brand Ambassador and U.S. Ryder Cupper Zach Johnson.

Jason plays AP2 irons...

Vokey Design Spin Milled wedges, with some cool custom stamping...