BEAVERTON, Ore. (AP) _ Tiger Woods, one of the biggest hitters in golf, says he needs to improve his driving if he's going to have a chance at winning the U.S. Open next month.

``If you play poorly off the tee, more than likely you won't have a chance at the U.S. Open. So obviously I need to work on my drive a little bit more,'' Woods said Friday during an appearance at Nike headquarters.

Woods will be going for his fifth straight major championship when the U.S. Open begins June 14 at Southern Hills in Tulsa, Okla.

Woods had to borrow a driver from Australian Adam Scott to win the Deutsche Bank-SAP Open on Sunday, after he broke his own driver in mid-swing the day before.

Woods still has no plans to use Nike's brand of golf clubs anytime soon, however. Rival David Duval used Nike irons at the Masters, but the clubs aren't yet available in the open market. Nike isn't pushing Woods to try out the irons.

``He's all about winning, and whatever helps him win, he uses,'' said Mike Kelly, business director for Nike golf clubs. ``We don't want to mess with him.''

Woods, who has a contract with Titleist, switched from that company's ball to the Nike Tour Accuracy in June 2000 and went on to win three straight majors last summer.

``Let me ask you this,'' he said to the crowd of employees and athletes gathered at the Nike campus to watch Woods give a clinic and help dedicate the new research building named for him. ``I don't think there is any other ball company that can say right now that they own any major, can they?''