The American ended the WGC-Bridgestone Invitational 18 over, although he keeps hold of the world number one spot.

BBC: Tiger Woods questions Ryder Cup participation

Bradley, who won last weekend's WGC-Bridgestone Invitational as Woods tied for eighth, has been followed by this year's Masters winner Bubba Watson and U.S. Open champion Webb Simpson.

CNN: Tiger: It's getting harder to win majors