The blowup on the back nine Sunday didn't involve Phil Mickelson. Rather, it was Vijay Singh who made like the Hindenburg in the final round of the 66th Masters Tournament.

When he made the turn, Singh perhaps had the best chance of catching Tiger Woods, who went on to win his third green jacket.

But the 2000 Masters champ began to fall apart as he entered Amen Corner, then went on to make a quadruple bogey on the par-5 15th hole, which sent him on a tumble from contention to loss prevention.

"That was the end of that," said Singh, whose 4-over-par 76 in Sunday's round dropped him to seventh place at 5-under 283, seven shots behind Woods. "I was just trying to play my own game. I wasn't even thinking about Tiger at that point."

Just three shots behind Woods after 10 holes Sunday, Singh made bogey at No. 11 to fall to 9-under for the tournament. He then bogeyed the par-4 14th hole before imploding at 15.

After laying up, Singh hit his third shot in the water, then found the pond again after taking his drop. His seventh stroke finally found the green, and he two-putted for nine.

Sergio Garcia also saw his hopes of catching Woods go up in smoke under the pressure of a final round. The 22-year-old Spaniard shot a 3-over-par 75 on Sunday to finish in eighth place at 4-under-par 284 for the tournament.

Garcia bogeyed two of the first four holes Sunday, and never recovered.

"I didn't play that bad; I had a couple of bogeys on 1 and 4, and I was hitting good shots," Garcia said. "When you start like that, you try and force it. It wasn't meant to be today. On Sunday at Augusta, it is important to start well, and nobody really did."

Padraig Harrington didn't start poorly Sunday, but he didn't mount much of a threat to Woods, either.

The 30-year-old Irishman, who began the day at 5-under for the tournament, opened with four consecutive pars before a bogey at No. 5.

Harrington made a birdie at No. 7 to get back to 5-under, but started the back nine with bogeys at Nos. 10 and 12.

The world's 12th-ranked player made a nice run at the end, making birdies at Nos. 13, 15 and 17, but by then Woods was in command. Harrington finished at 1-under Sunday and 6-under 282 for the tournament, good for a tie with Ernie Els for fifth place.

"I was very uncomfortable all week with my grip, and I was very aware of it," Harrington said. "For a week when I wasn't comfortable, I'm pleased."