The Royal and Ancient Club have admitted that they are at a loss to explain why some golfing greats will not be at the Open.

Kenny Perry, twice a winner in America in recent weeks and currently 20th on the rankings, has opted for a US Tour event in Milwaukee instead, and - not for the first time - Japan's leader playing Shingo Katayama, ranked 47th, has turned down his exempt spot as well.

"I can't pretend I understand Kenny Perry's decision," stated Dawson. "He's having a great run and we are very sorry he's not here. It's a pity and it's a shame Shingo Katayama is not coming as well. I can't pretend to understand that either."

He added: "I find it disappointing. You're not going to win majors if you don't enter and I think the history books show that majors are what you are remembered for.

"You spend a lot of money setting these events up."

World number one and US Open champion Woods, not expecting to play again this year following knee ligament surgery, is pictured along with defending Open champion Padraig Harrington on posters on the approach road to Royal Birkdale.

"Obviously it's very sad that he's not here and let's hope he gets better quickly, but The Open is bigger than one player and we're still going to have a great championship," added Dawson.

"He's played in every one since 1995 and won three, so it was odds against him winning this year."