Tiger Woods may be some way down the field but there's no doubting his ability to draw a crowd as fires off a drive on the last day of the USPGA
However, after birdies at one and two the world number one's challenge fades and dies a death with a double-bogey at 10 - he finishes with a 73 and tied for 28th on two under par
Weather conditions for the last day are warm with blue skies but the breeze is a relatively strong one. Which players will hold their nerve as the tension mounts in Wisconsin?
Big-hitting American Bubba Watson starts his final round six off the lead but soon makes his move, birdieing the second before landing an eagle at the par-five fifth
Yorkshireman Simon Dyson gets to eight under with birdies at five and six before hitting trouble - he recovers, however, and finishes the joint-highest Englishman with Paul Casey on six under
American Dustin Johnson is out with overnight leader Nick Watney in the final pairing - he's out in one-over-par 37 and it appears as though his challenge is fading
Northern Ireland's Rory McIlroy makes some great saves on the opening holes but only manages the one birdie on the outward nine. However, some of his rivals are faring rather worse...
Watney, who had a three-shot lead going into the final round, opens with a double-bogey and things don't get much better - he cards a nine-over 81 to finish the day tied for 18th
Germany's Martin Kaymer looks the coolest of the leaders in the early stages and when he makes birdie at four, the 25-year-old claims a share of the lead on 11 under par
China's Wenchong Liang, playing with McIlroy, makes bogey at the first and never really gets a challenge going - he finishes with a 73 for a very respectable top-10 finish
Phil Mickelson needs a top-four finish to become world number one - he is one of only four men to break 70 on the final day but can only finish in a tie for 12th
Australian old-timer Steve Elkington, the 1995 champion, barges into contention with some swashbuckling play - but bogeys at 17 and 18 put paid to his chances of a repeat
McIlroy lets more chances slip by at 16 and 17 leaving him needing a birdie at the intimidating 18th to have any chance - it misses by a whisker and he finishes a shot outside the play-off
Watson comes back in 34 and is the lowest in the clubhouse on 11 under - but Kaymer makes a great par on the last to make sure of at least a two-way play-off
When Dustin Johnson makes par at the last it looks as though we've got a three-way shootout - but he grounded his club playing his second from a bunker and is later handed a two-shot penalty
Johnson, who even had a putt to win it at the last, said he wasn't aware he was playing out of a trap, while officials claimed players were told every bit of sand was a designated bunker
With the controversy still raging, the three-hole play-off goes ahead - Watson takes an early lead but a wild drive at the 18th hands the championship to Kaymer
Kaymer is only the second German winner of a major after Bernhard Langer and will go into the Ryder Cup in October as one of the European team's leading lights
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