Grazed knees the mark of a true champion; PICK OF THE DAY.
It's not the sublime Alpine scenery that really has me gasping for breath, but the fact that the riders continue racing even when they've got massive great scabs on their knees.
Scabs are such a classic childhood ailment that it's a surprise to see an adult covered in what Wikipedia elegantly defines as "hard coatings on the skin formed during the wound-healing reconstruction phase".
I can't remember the last time I grazed my leg badly enough to merit a good oldfashioned scab.
I'd probably be laid low for a week while the platelets got to work with the coagulation process - I certainly wouldn't be contemplating a gruelling 204.5km stage from Morzine-Avoriaz to Saint-Jean-de-Maurienne.
It's the same with stinging nettles - when I was a child, hardly a day went by without my tripping face-first into a patch of nasty nettles.
Now it never seems to happen. I don't think I'm living life to the full.