Reply #52: In human sports, the athletes choose to compete,

[Critters2]

and can choose not to when they are not feeling well. This man sensed the dog was not feeling well, but ran it anyway.

"...sensed something was wrong with a dog in his team Tuesday but he didn't find out what until too late..."


Also interesting that this animal is referred to as "the first dog to die" in this year's race, assuming, I guess, that there will be more.