By Phil Casey, PA Sport

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Denmark's Thomas Bjorn has admitted he does not know whether he can handle the pressure of leading the Open championship.

Bjorn takes a one-shot lead into the final round at Royal St George's after a third round 69 containing an eagle, one birdie and just one bogey left him the only player under par.

However, some of the world's best players are gathered behind him with 1997 USPGA champion and world number four Davis Love a shot behind and Tiger Woods and Vijay Singh another shot adrift.

Sergio Garcia and American Kenny Perry, winner of three of his last four events and third in the US Open in the other, are also on one over par with 12 players within four shots of the lead.

Bjorn has never won a major championship but hopes his experience of three previous Open top-10s, including second to Woods in 2000 and eighth at Muirfield last year when he was only two shots off the play-off.

"I don't know how to win majors but hopefully my game will stand up and be good enough," he said. "Everyone is under pressure and you can only believe in your swing and yourself.

"I expect Tiger to come out and play his best and win this tournament, we all know that. But the good thing is that there are so many players around him who can stand up and also win this tournament.

"I don't think the pressure is on me. Sergio is there trying to win his first major and it's been a long time for him. Tiger is there and he wants to win another major. Nobody is tougher to beat than him.

"All the expectations will be on them. I'm in the lead but that's one or two shots ahead and that can go in a couple of holes.

"I promised myself the next time I got in contention I was going to enjoy every second and hopefully I will, if not I am building for the future and I am sure I will win my major championship."

Bjorn is building for the future with the aid of new coach Bob Torrance, and admitted he was surprised to have progressed so far in just three weeks.

"I've come a long way with Bob Torrance in the last three weeks. I'm trying to build a swing for the future and all of a sudden I'm leading the Open championship going into the final day. I don't think there's any building for the future, this is it."

The 32-year-old could have been even further ahead but for being penalised two shots during his first round 73 when he hit the sand in a bunker with his club on the 17th after failing to escape at the first attempt.

It meant a quadruple-bogey eight but the Ryder Cup star added: "I think what saved me in this tournament was I got up and down with a wonderful chip on the 18th and got into the clubhouse and saw how many good players had struggled on this course and felt like I was not out of this tournament.

"I was probably not thinking clearly at the time, I was playing some of the best golf of my life, two under par at the time in those conditions.

"A lot of people said you should not lose your temper but if you look at what happened I just scraped it like I normally do after if I hit a bad bunker shot, but I've probably not left a ball in a bunker for 10 years."

Bjorn's cautious approach of aiming for the centre of the greens on most holes has paid dividends and he intends maintaining that tactic on Sunday.

"I probably haven't played golf tee-to-green as well as I did today for two years," he added. "It's awkward sometimes to hit sand irons to 25 feet but it's about patience.

"Good players have patience and know when they go out in majors they can't force it. Tiger is the best at it. That's all he talks about with majors, patience, patience, patience.

"I've been fortunate to see him in majors and practice rounds and that's the best way to learn, from the best. Hopefully that can give me a lot of good feelings going into tomorrow."