Norton, MA (My Sportsbook) - With the No. 1 ranking in the world on the line, Vijay Singh and Tiger Woods will be paired in the final group on Monday as Singh takes a three-shot lead into the final round of the Deutsche Bank Championship.

Singh shot a three-under 68 on Sunday to move to 14-under-par 199, while Woods posted a two-under 69. He stands at 11-under-par 202 and the stage is set to determine the game's top player.

If Woods does not finish in the top-seven, Singh will become No. 1. If Woods does finish within the top-seven, Singh would become No. 1 if he ties or beats him.

Both players downplayed the No. 1 ranking considering there is a tournament to win.

"Fortunately, Tiger is in my group and I can see everything happening," said Singh, who has never been No. 1 in the world. "I'm just going to go out there and try to win the golf tournament. That's my goal."

"I'm looking at it that Vijay and I are both vying for the tournament victory," said Woods, who has been first in the rankings for 264 consecutive weeks and a record total of 334 weeks. "Tournament victories take care of themselves as far as the rankings are concerned. Tomorrow my goal is to go out there and try to win this thing."

Bill Haas, whose father Jay finished second at the First Tee Open at Pebble Beach on the Champions Tour, shot an even-par 71 and is alone in third place at nine-under-par 204.

Shigeki Maruyama also carded an even-par 71 on Sunday and has sole possession of fourth at minus-eight.

But the story of the week is Singh and Woods battling for so much.

Singh, who won the PGA Championship last month, led by two at the start of Sunday's final round. He reached the green in two with a five-wood at the par- five second at the TPC of Boston and two-putted from 20 feet for birdie.

His next birdie came at the 600-yard, par-five seventh when Singh was forced to lay up short of the green with a seven-iron. His sand-wedge approach stopped 15 feet from the hole and Singh rolled in the birdie putt. He added a two-footer for birdie at the ninth to make the turn with a three-shot lead over Woods.

Woods drained a four-foot birdie putt at the first, but ran into trouble when his tee ball landed in a bunker at the par-three third. He missed an eight- footer for par, but tallied two birdies on the rest of his front nine.

Woods sank a 20-foot birdie putt at the 10th to cut the margin, then both players went cold.

Woods missed the green with an eight-iron at the 13th, then missed a 12-footer for par. Singh, in the group behind Woods on Sunday, made a mess of the hole and looked to be in danger of dropping a shot to par. His blast out of the bunker from 45 feet fell into the cup, and shockingly, he kept his three-shot lead.

"In situations like that, you try to get close," said Singh, referring to the hole-out at 14. "You try not to throw away too many shots. My main goal was to make sure you make a bogey and it came out perfect. It started rolling toward the hole, I thought it was going to stop short, but it went in."

Singh did not carry any momentum from the par save. He landed in a greenside bunker at the next hole, and blasted out to six feet. Singh missed the par putt and his lead was trimmed to two.

Woods looked like he was going to fall down the leaderboard when his drive landed in the rough at 17. His second flew over the green, but after a free drop because of the grandstand, he pitched to eight feet and saved par.

"I caught just the flyer of all flyers. That thing was outta here," Woods said about his approach at 17.

Woods did not play the par-five 18th much better. His four-iron nearly landed in a hazard, but instead it was between two rocks. Woods chipped his third through the green, but pitched his fourth to two feet. He made the par to stay two back, but Singh got one back at 18.

Singh hit a five-wood to 20 feet with his second at the 543-yard hole. He two- putted for the birdie and the 54-hole lead, a spot on the leaderboard where Singh has won the last eight times.

"I played well. I'm putting well and swinging well," said Singh. "So, who knows tomorrow?"

Woods has come from behind eight times for wins on the PGA Tour.

"I think it should be a lot of fun," said Woods, who has only one win this season, the WGC-Accenture Match Play Championship. "To go out there and compete against Vijay, he's been playing extremely well over the last couple of years and I think it would just be a blast to go out there and compete at that level."

Defending champion Adam Scott and Jay Williamson shot 70s on Sunday and are tied for fifth at minus-seven. Daniel Chopra carded a 70 and shares seventh place with Hank Kuehne, who posted a 71, at six-under-par 207.

Ryan Palmer and John Rollins both struggled on Sunday. Palmer shot a 74 and Rollins a 75 to share ninth place at minus-five.