Phil Mickelson has pulled out of this week's FedEx BMW Championship golf tournament, predominantly for family reasons - he wants to be with his kids as they start school, and also to rest.
http://sports.iwon.com/news/09042007/v6987.html

Seems like only the top players get this privilege, as Tiger skipped week one and Ernie Els skipped week two. Those fighting for their livelyhood and actually need the money, the "grinders", don't skip a week just because they are tired.