This official Program from the 2006 Open Championship at Royal Liverpool is autographed by that year's Open Champ Tiger Woods, and tons of other participants including Phil Mickelson, Davis Love III, Phil Mickelson, Jim Furyk, Sergio Garcia, Vijay Singh, Henrik Stenson, Miguel Angel Jimenez, David Duval, Ian Poulter, and many many more. Almost all autographs are signed on the player's respective player profile page.
Letter of Authenticity from James Spence Authentication (JSA)