I was thinking the other day about this....
We aren't very surprised when we hear that Freddy Couples is having some back pain, or maybe that Phil Mickelson has some shoulder pain... but mention that Tiger has to have season-ending surgery and millions literally have their jaws hit their laps. Tiger has dominated so much and had such a reputation for physical fitness that we just can't believe that he is human sometimes. This reputation gets even more interesting when you see him nearly collapse after each shot in the US Open Sunday and Monday, watch him get up and walk to the next shot, and do time after time until he wins it.
Most of us hackers can't concentrate through 18 holes with nothing on the line. Tiger does it in a major with stress fractures and a torn ACL shooting him with pain the whole time.