PORTRUSH, Northern Ireland — In the week of the Masters this spring, Tiger Woods said he knew he was ready for the challenge, and he walked away wearing his fifth green jacket.

He said Tuesday that he doesn't have as much confidence in his game as he enters The Open Championship this week.

"It's not quite as sharp as I'd like to have it right now," Woods said at his pre-tournament news conference. "Today it was a good range session. I need another one tomorrow. And hopefully that will be enough to be ready."

Woods played seven practice holes Tuesday at Royal Portrush Golf Club in Northern Ireland, which is hosting The Open for the first time since 1951.

"My touch around the greens is right where I need to have it," he said. "I still need to get the ball - the shape of the golf ball a little bit better than I am right now, especially with the weather coming in and the winds are going to be changing. I'm going to have to be able to cut the ball, draw the ball, hit at different heights and move it all around."

Woods has played in just nine tournaments this season, winning only at Augusta National. He missed the cut at the PGA Championship and finished in a tie for 21st at the U.S. Open.

The 43-year-old Woods said returning to his pre-Masters form has proved difficult.

"Well, getting myself into position to win the Masters ... It took a lot out of me. That golf course puts so much stress on the system," Woods said. "It was a very emotional week and one that I keep reliving. It's hard to believe that I pulled it off and I ended up winning the tournament."

Woods previously won The Open three times, most recently in 2006.