The Buick Invitational at Torrey Pines South in La Jolla, Calif.

The PGA Tour returned to Torrey Pines South in La Jolla, Calif. last week for the first time since a thrilling U.S. Open last June.

This time, it was for the annual Buick Invitational, which Tiger Woods had won four years in a row and five of the last six (only John Daly in 2004 has broken the Tiger streak). But there would be a guaranteed new winner this year as Woods remains sidelined with a knee injury. San Diego native Phil Mickelson, who struggled at last year's U.S. Open on home turf, didn't make an impact again, finishing 42nd.

Camilo Villegas took a commanding early lead with a 63 on Thursday, but the field would eventually catch up to him, and on Sunday it came down to John Rollins and Nick Watney. Though Rollins led on the back nine, Watney rallied at the end, with birdies on two of the final three holes (including a 40-foot birdie putt on the 16th) to win by one shot.

It's Watney's second career win on the PGA Tour, winning last at the Zurich Classic in New Orleans in 2007.

Here's a look at the week's action at Torrey Pines South.

Nick Watney at the '09 Buick Invitational

Nick Watney came from behind on Sunday to win the 2009 Buick Invitational at Torrey Pines South.

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2009 Buick Invitational at Torrey Pines South

Fans watch the action from the Buick Invitational at Torrey Pines South in La Jolla, Calif.

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Retief Goosen at the 2009 Buick Invitational

Retief Goosen putts out on the Torrey Pines South Course in the first round.

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Padraig Harrington at the 2009 Buick Invitational

Padraig Harrington made his first PGA Tour appearance in 2009 at Torrey Pines South this week.

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Charley Hoffman at the 2009 Buick Invitational

Charley Hoffman guts it out in third-round rain en route to a top 10 finish at the Buick Invitational at Torrey Pines South.

Michael Zito/Eclipse Sportswire

Charley Hoffman at the '09 Buick Invitational

Charley Hoffman has two top 10 finishes in a row on the PGA Tour after a seventh-place finish at the Buick Invitational at Torrey Pines South and losing in a playoff last week.

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Phil Mickelson at the '09 Buick Invitational

Hometown boy Phil Mickelson struggled again at Torrey Pines South, finishing 42nd.

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Phil Mickelson - 2009 Buick Invitational

Phil Mickelson and his caddie talk over a shot on Torrey Pines South's back nine in San Diego.

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Camilo Villegas at the 2009 Buick Invitational

Camilo Villegas took a first round lead with a 63 at the 2009 Buick Invitational at Torrey Pines South.

Michael Zito/Eclipse Sportswire

Camilo Villegas - '09 Buick Invitational

Camilo Villegas tees off on the back nine Sunday at Torrey Pines South, where he contended down the stretch and finished tied for third.

Michael Zito/Eclipse Sportswire

John Rollins - '09 Buick Invitational

John Rollins took a lead into the back nine on Sunday at Torrey Pines South before squandering it to Nick Watney.

Michael Zito/Eclipse Sportswire