Phil Mickelson has a green jacket from the Masters, a Claret Jug from the British Open and a Wanamaker Trophy from the PGA Championship. But in order to complete the career Grand Slam, to become the sixth in the modern era with that honor,Mickelson needs the one trophy thats eluded him his entire career a U.S. Open Championship Trophy.Mickelson has in the U.S. Open, his first in Jeremy Hellickson Jersey 1999 and his most recent in 2013. And could be his last good shot at completing the career Grand Slam.MORE: | | Thats been a career goal that Ive had but havent really voiced, but now that Im so close to it, its pretty obvious, Mickelson said of the Jesus Sucre Jersey career Grand Slam on the .If Mickelson, 45, finds a way to brave a challenging Chambers Bay and outplay a field filled with top golfers 20 years younger than him, hell join Tiger Woods, Jack Nicklaus, Ben Hogan, Gary Player and Gene Sarazan as the only players to win all four major tournaments.Those five players are the five best players in the history of the game, Mickelson said. There have been a number of players who have been one leg shy, and Im one of those guys too, but I still have a good opportunity in a tournament Ive played well in the past to break through and get that.Mickelson certainly has reason to believe he can win the U.S. Open, which he said is his biggest career goal, considering his second-place finishes in his last two majors. Even if he fails to win this weekend, he told reporters Tuesday he feels no sense of urgency.PHOTOS: It's something I really would love to do is complete the career Grand Slam, he said. Earl Weaver Jersey I feel like in this day and age I'm in the best shape I've been in. I feel like my golf swing, I've always felt a long golf swing, a long, smooth, flowing swing leads to a long career, and a short, violent swing leads to a short career. And I haven't had any really long-term or debilitating injuries to speak of.So if I continue to do what I've done the last eight months or so, there's no reason why I couldn't play at a high level for a Manny Machado Jersey while.Lefty teed off Thursdays Round 1 at 10:33 a.m. ET with Bubba Watson and Angel Cabrera, two players with four major championships between them.I love competing and playing against the best players. And I still have a huge obstacle, a huge challenge that I am trying to overcome and that's to win a U.S. Open and complete the Grand Slam, Mickelson said. And I'm enjoying that challenge Zach Britton Jersey . I'm having fun with it. It's not a burden. It's like an exciting opportunity. And every year it comes around, I get excited to try to conquer that opportunity and complete that Grand Slam. I love it.