For 12th time in 2010, Mickelson has chance to knock Tiger from No. 1

For the 12th time this year, Phil Mickelson has a chance to replace Tiger Woods at No. 1 in the world. And this time, Woods doesn't factor into the equation because the world's No. 1 player didn't qualify for the Tour Championship. Mickelson can get to No. 1 for the first time in his career by winning at East Lake, where he is the defending champion, or by finishing in no more than a three-way tie for second. Steve Stricker, meanwhile, can't mathematically get to No. 1 -- because Woods is not at the Tour Championship. The winner gets 54 points toward the ranking, and the number is reduced slightly without the No. 1 player in the field. Woods and Mickelson remain first and second in the world ranking, followed by No. 3 Lee Westwood of England, No. 4 Stricker and No. 5 Martin Kaymer of Germany. Rounding out the top 10 are No. 6 Jim Furyk, No. 7 Paul Casey of England, No. 8 Rory McIlroy of Northern Ireland, No. 9 Luke Donald of England and No. 10 Matt Kuchar. The second 10 includes No. 11 Ernie Els, No. 12 Dustin Johnson, No. 13 Graeme McDowell, No. 14 Ian Poulter, No. 15 Hunter Mahan, No. 16 Edoardo Molinari, No. 17 Retief Goosen, No. 18 Zach Johnson, No. 19 Anthony Kim and No. 20 Louis Oosthuizen.