Woods and Toms out

Woods, bidding for his third title of the year, struggled with his putting before losing a tight battle with Chad Campbell by a hole.

Left-hander Mickelson, who never led at any stage of his match with Britain's David Howell, went out 3&1 at a sun-drenched La Costa Resort and Spa.

Davis Love III also booked a place in the fourth round, beating fellow American Chris DiMarco 3&2.

Lehman, world-ranked 37th, had trailed one down after five holes before fighting back against Toms, sealing a 4&3 win with a 15-foot birdie putt at the 15th.

Toms, who crushed compatriot DiMarco 6&5 in last year's final, narrowly missed a 14-footer to keep the match alive.

"It's always nice to win a match, especially against a player of the calibre of David Toms," a smiling Lehman told reporters.

"I think it would be safe to say that I have played steady golf all the way through to this point."

In the day's top tie, twice champion Woods battled to make putts on the front nine at La Costa and was three down with eight to play before mounting a rally.

He chipped in for an eagle-three from just off the edge of the green at the 11th and won the 12th with a par after Campbell missed the green to the left off the tee.

Campbell, who had lost in the third round in two previous appearances at La Costa, countered with an eight-foot birdie putt at the par-four 13th to restore his two-hole advantage.

But he effectively gifted the next hole to Woods, finding thick rough to the left of the green with his approach and

chunking his third shot into a greenside bunker on the way to a double-bogey six.

Back to one up, Campbell matched Woods with pars at the next three holes to stay in front with one to play.

After Campbell missed a birdie putt from 29 feet at the last, Woods had a chance to take the match into extra time but failed to sink his birdie attempt from 13 feet.

"I think to be able to come out and get that three-hole lead early on and also to rebound from the things that happened on 11 and 12 is pretty huge for me," said Campbell.

"It was a great day but the tournament is not over yet just because you beat one guy."

A frustrated Woods said: "All my opportunities to put pressure on Chad by making putts I missed and he won the match."

Canadian Mike Weir, the 2003 U.S. Masters champion, came back from two down after five holes to lie all square with Australia's Geoff Ogilvy after 20 holes.

Vijay Singh, who had never reached the third round at La Costa before this week, was all square with Irishman Padraig Harrington after 17 and world number three Retief Goosen led Briton Luke Donald by one after 16.

In the final match, the cowboy-hatted Shingo Katayama of Japan trailed American Zach Johnson by three holes after 14.

Chad Campbell (U.S.) beat Tiger Woods (U.S.) by 1 hole
Tom Lehman (U.S.) beat David Toms (U.S.) 4 & 3
Padraig Harrington (Ireland) beat Vijay Singh (Fiji) at hole 19
Davis Love III (U.S.) beat Chris DiMarco (U.S.) 3 & 2
Retief Goosen (South Africa) beat Luke Donald (Britain) by 1 hole
Zach Johnson (U.S.) beat Shingo Katayama (Japan) 4 & 3
Geoff Ogilvy (Australia) beat Mike Weir (Canada) at hole 21
David Howell (Britain) beat Phil Mickelson (U.S.) 3 & 1

16:15 CET - Chad Campbell v Tom Lehman
16:25 - Geoff Ogilvy (Australia) v David Howell (Britain)
16:35 - Padraig Harrington (Ireland) v Davis Love III
16:45 - Retief Goosen (South Africa) v Zach Johnson

Semi-final matches scheduled to start from around 1210

Wilson leads in Tuscan