LONDON -- Arsenal rediscovered its attacking potency as Alexis Sanchezs double secured a 3-1 victory over Bournemouth in the Premier League on Sunday.Theo Walcott was also on target with a header as Arsenal overcame a contentious penalty that Callum Wilson converted in a fiercely fought game at the Emirates Stadium.Having struggled offensively in recent weeks, Sanchez inspired Arsenal to produce some scintillating attacking play and avoid a third consecutive league draw. Arsenal remains fourth, three points behind leader Chelsea but four points ahead of north London rival Tottenham.Even when he looks dead (Sanchez) is still alive and finds the resources to do something special, Arsenal manager Arsene Wenger said. We started well, but after they equalized we became nervous and thats where you could see the draws played on our mind.Bournemouth can take heart from a promising attacking display, which was delivered without Jack Wilshere, who was ineligible due to the terms of the midfielders loan from Arsenal.I thought we were very good today, its very difficult when you go behind early in the game, but the group responded very well, with maturity, Bournemouth manager Eddie Howe said.Today when you look at the players we were without, the fact that we managed to produce the performance we did without them shows the quality in the squad.Arsenals early intensity forced a mistake from Steve Cook in the 12th minute, as the Bournemouth defenders back pass gifted Sanchez the chance to round goalkeeper Adam Federici and calmly place the ball into the empty net.Arsenal believed it should have had a penalty two minutes later but referee Michael Jones waved play on as Sanchez went down under a challenge from Nathan Ake. Replays showed that any contact did in fact take place just outside the area.The home fans were doubly aggrieved in the 25th when Jones awarded the visitors a penalty as Nacho Monreal and Wilson went shoulder to shoulder in the Arsenal box. The Bournemouth forward calmly placed his spot kick into the bottom right corner.With Arsenal visibly rattled by the equalizer, Bournemouth spurned opportunities to take the lead, most notably when Adam Smith headed narrowly over when unmarked six yards (meters) out.However, Wengers side began to rediscover its rhythm as Sanchez twice came close just before halftime, striking narrowly over after a neat exchange with Ozil before rattling the bar with a powerful effort from the right side of the box.Arsenal began the second half as it ended the first and Monreal went some way to redeeming himself by supplying the cross for Walcott to restore Arsenals lead in the 53rd after good work from Sanchez and Ozil.Arsenal threatened to extend its lead on several occasions before substitute Olivier Giroud centered for Sanchez in the 90th to seal a much-needed victory. Nike Sb Outlet Nz . 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For all the rounds Palmer has played at Colonial, where he has been a full dues-paying member since 2010, he had never had such a low score. He generally plays there two or three times a week during the off-season and once or twice during weeks hes not playing the PGA Tour. "These old men here make me grind because I have to give them so many shots. Maybe that helps," Palmer said, smiling. "Usually in a practice round, I dont think Ive shot below 65. You just dont grind a lot. In this situation, you grind a little harder. You are able to focus more. When Im out here with the guys, I mean half the time I might grab a few (beers) for the back nine." Graham DeLaet of Weyburn, Sask., wearing pants with a plaid design similar to the jacket Colonial winners get, matched David Hearn of Brantford, Ont., Morgan Hoffmann and John Peterson at 64. Matt Kuchar, No. 13 in the world ranking and the highest-ranked player in the 136-man invitational field, was in a group of six players at 65. Rollins, who like Palmer lives in nearby Colleyville, has playing privileges at Colonial like other PGA Tour players though he doesnt play the 7,204-yard layout nearly as much as Palmer. "Hes a pretty permanent fixture in the mens group and everything that goes on out here," Rollins said. Palmer, the former Texas A&M player who has three PGA Tour victories, had a bogey-free round, hitting 12 of 14 fairways and 14 of 18 greens in regulation, with his first birdie putt being his longest. He was still even par until his 17-footer on his fifth hole, the 442-yard 14th, that started his stretch of four consecutive birdies. The only other birdie over 10 feet was a 14-footer at the 391-yard sixth hole. "Its pretty neat. A lot of fun," Palmer said. "Being a member here, we played it so many times, James annd I.dddddddddddd. I felt comfortable over every tee shot. I hit driver almost everywhere that I could. I drove it perfectly today I felt. I hit it close a lot and made a lot of putts from about 5 or 6 feet. ... (Playing partner) Brian Stuards caddie even made a comment on how comfortable I was because Ive done it so many times." In his nine previous PGA Tour appearances at Colonial, Palmers only top 10 was a tie for fifth last year. He missed the cut in 2010, the same year he became a full member. Now he finally leads at Colonial after matching his best-ever round on the PGA Tour. "This is what I dream about when I play here every year," Palmer said. " This is the one tournament I gear up for the most." David Toms had an opening 62 when winning at Colonial two years ago. He was tied for the first-round lead that year with Chez Reavie. The only other opening 62 was Patrick Sheehans in 2005. The course record of 61 is shared by six players, the last Chad Campbell in 2004. Rollins only bogey came after his drive at the 431-yard 12th landed in a fairway bunker. But he quickly got that shot back at the 193-yard 13th hole when he hit his tee shot within 7 feet of the cup. Kuchars only bogey came at the 241-yard, par-3 fourth , the middle hole of Colonials famed "horrible horseshoe" because of the layout of a three-hole stretch where that par 3 is sandwiched by the two longest par 4s on the course. But he came right back with a 10-foot birdie at the 472-yard fifth to get to 5 under. Colonial is one of Kuchars favourite courses. Plus, the PGA Tours two-week visit to the Dallas-Fort Worth area for the Byron Nelson Championship and the Colonial provides extra time for him to work with his Dallas-based swing coach. "I feel like I start coming along maybe the end of this week," Kuchar said. "Things get really clicking." Defending Colonial champion Zach Johnson shot 69, the 16th time in his last 17 rounds under par at Colonial. The lone exception in that five-year span, when he also won in 2010, was last years closing 72 that included a two-stroke penalty on the final hole. He had four bogeys and three birdies. "I think overall more positives than negatives. Im not going to dwell on too much here," Johnson said. "Its a fairly solid day, a day I didnt shoot myself out of it. I would have liked to have a couple of more birdies." ' ' '