The 116th edition of the U.S. Open gets underway today at Oakmont Country Club with a number of story-lines on the horizon. Phil Mickelson is the main attraction as he looks to complete the career grand-slam by capturing his first U.S. Open championship. Mickelson has 6 career runner-up finishes in the event, most notably in 2006 at Winged Foot where he collapsed in the final holes.

Jordan Spieth has a chance to make history as the defending champion. Should Spieth finish inside the top-4, he would become the first player ever to finish inside the top-4 in six consecutive majors. Both Tiger Woods (2005-06) and Jack Nicklaus (1973-74) had five top-4's along with Spieth.

The #1 player in the world, Jason Day, looks to continue his hot play and solidify himself as the best player on the planet.

Oakmont presents some very difficult tasks for the players. A course that can bite players in a number of ways, Oakmont is considered one of the toughest courses in the world. The rough is deep, the greens are insanely fast, and narrow fairways surrounded by a number of bunkers present a difficult task for the players. Don't be surprised if the winning score on Sunday is over-par.

Even without Tiger Woods in the field, the 116th U.S. Open is sure to be a very entertaining golf tournament.