Though the week began shrouded in the controversy of some ill-advised Sergio Garcia comments about Tiger Woods (remarks inadvertently multiplied by Tour CEO George O'Grady) and the disappointment of poor Thursday and Friday weather, the E Tour's flagship BMW PGA Championship certainly ended on an exciting note, with Italy's Matteo Manassero prevailing in a three-way playoff with Scotland's Marc Warren and the event's 2010 winner, England's Simon Khan.  It was a week in which many of the anticipate contenders bowed out early, with two-time winner Luke Donald missing the cut courtesy of a thumb infection, and both world number two Rory McIlroy and the recently hot Graeme McDowell failing to reach the weekend without a similar excuse.  That left the 54-hole lead to be claimed by 30-year-old Alejandro Canizares (a one-time E Tour winner at the 2006 Russian Open), who stood one ahead of a most likely contender, world number 12 Lee Westwood, and two up on Manassero and Warren.  But Westwood, who has never won the Tour's most coveted non-Major title, could do no better than a 73 on Sunday, eventually falling into a tie for 9th.  For Canizares, an even-par 72 was quite respectable under the circumstances, but it was accomplished with two late birdies, leaving him in a tie for fourth, one off the pace.  Manaserro, for his part, made his move early, going out in 32, then marching steadily home with an even-par 37 to post a 278 total.  Warren went the opposite route, going out in even-par 35, carding four straight birdies at holes 10-13, then missing a chance to win the title outright with a bogey at the long par-4 15th.  And then there was Khan, seldom a contender away from Wentworth, who closed with a flawless, bogey-free 66 to grab his spot in the playoff.  Warren was elimated on the first extra hole (the par-5 18th), leaving Manassero to eventually close out Khan with a birdie at the fourth (again the 18th).  The victory was the 20-year-old Manassero's fourth career E Tour triumph (in just 82 starts) and, while giving him a win in each of his first four professional seasons, did much to reconfirm his place among the game's rising young stars...............It was a five-year wait for 39-year-old Thomas Brent "Boo" Weekley, a drought which saw the 2008 Ryder Cup player slip as far as 180th place on the 2011 PGA Tour money list and 618th in the Official World Ranking.  But with a second-place finish at the Tampa Bay Championship and a T6 in New Orleans, the Milton, FL native has spent much of 2013 knocking on the door, and at the Crowne Plaza Invitational at Colonial he finally pushed himself in.  Weekley posted consistent rounds of 67-67-66-66 over the famed par-70 Colonial Country Club layout, putting himself in position to win by recording birdies at holes 8-10 on Sunday, then punctuating it with a birdie at the par-3 13th - which, after a subsequent run of five-closing pars, proved the margin of victory.  Several prominent players represented Weekley's primary competition, headed by second- and third-round leader Matt Kuchar, who fell two behind following Weekley's birdie at the 13th and never really mounted another charge, instead birdieing the 18th simply to pull within one and claim solo second.  Third belonged to two-time Colonial winner (and defending champion) Zach Johnson who closed with a 66 - but he too never really had a chance to win, making birdies at the 16th and 17th to pull close.  One man who did have a chance was 28-year-old Scott Stallings, who charged into the fight with a stunning 29 on the outward half, and actually held the lead through 14 holes before a double-bogey at the par-4 15th ended his hopes of victory.