When it came to the Olympics, the world's No. 1 golfer had a brutally difficult decision to make, Jason Sobel writes.
- Van der Burgh bests own 50 breaststroke WR
- U.S. women win high diving gold, silver at worlds
- High jump champ Shkolina out with heel injury
- Ledecky bests own 1500m WR in world prelims
- IAAF president fights back at doping claims
- Brazil colleges to help with dirty water cleanup
- Blatter won't run for re-election as IOC member