POIPU BEACH, Hawaii (AP) _ Masters champion Vijay Singh shot a 3-under-par 69 on Tuesday to take a two-stroke lead over Tigers Woods in the PGA Grand Slam of Golf.

Tom Lehman opened with a 73 and Paul Azinger shot a 74 in the four-player, 36-hole event for the year's major champions.

Because Woods won three majors _ the U.S. Open, British Open and PGA Championship _ Lehman and Azinger gained invitations based on their finishes in the elite events.

Ernie Els, the runner-up in three of the four major championships, clinched an alternate berth, but withdrew because of a schedule conflict.

After winning the Johnnie Walker Classic in Thailand on Sunday, Woods arrived at the Poipu Bay course a little more than two hours before his tee time.

After checking in and a quick workout at the spa, he marched to the driving range for a few warmup swings before heading for the first tee.

Woods, seeking his third consecutive Grand Slam title, made the turn in 2 over, but picked up the tempo with three birdies on the back nine

Singh birdied the first and third holes, but dropped a stroke with a bogey on the 374-yard eighth hole. He added birdies on Nos. 13 and 18 to open up the two-stroke margin.

Lehman birdied the 10th hole, but triple-bogeyed the par-3 11th. Azinger had a double-bogey on the par-5 14th.

The winner will receive $400,000 from the $1 million purse.