Golf - British Open update:Tiger Woods switched putter for the second time in a week in a last-gasp bid to revive his British Open Championship chances at St Andrews.
At the start of the week, Woods ditched the putter which has won him 13 of his 14 majors, including the last two Opens at the Home of Golf by eight and five shots.
But after taking 99 putts in the first three rounds to lie 12 shots off the lead held by South African Louis Oosthuizen, Woods abandoned the experiment and saw it pay instant dividends.
The world number one holed from seven feet on the first and five feet on the third for birdie, improving to five under par and within 10 shots of Oosthuizen, due out with England's Paul Casey in the last group shortly at 2.05pm.
However Woods gave back the shots with an untimely double-bogey six at the fourth after he failed to get out of a bunker which all but ended his challenge as he dropped back to three under.
Scotland's Paul Lawrie recovered from 10 shots behind after 54 holes to win the Open at Carnoustie in 1999 - an Open championship record - but needed a very large helping hand from Jean van de Velde to do so.
Europe's most recent major champion, US Open winner Graeme McDowell, was an early mover and was five under with five holes to play.
The 30-year-old turned in three under 33 and adding another birdie on the 10th after a superb approach to within two feet.
Despite a dropped shot at the 12th he holed a monster 80 foot putt at 13 to get back to five under.
Shane Lowry was level for his first three holes to remain four under, the same as Rory McIlroy, who parred his opening hole.
Athlone's Colm Moriarty enjoyed a fine week as he closed out with a two under 70 to finish one under 287 for the tournament.
Darren Clarke closed with a 71 to get back to level par 288 by the week's end.