Woods era at the No. 1 spot in peril as Mickelson bids for top?

Question

It's not the first time this year that Phil Mickelson has been in with a chance of taking the No. 1 spot, but with the Californian hitting three sub-seventy rounds in the previous three days of the Deutsche Bank Championship, you'd have thought that Lefty has a pretty good chance of taking the top spot by the end of proceedings today...

http://blogs.bettor.com/Endgame-for-Tiger-Woods-as-Phil-Mickelson-eyes-No-1-spot-a25697