H Tiger that was simply blind courage, anyone can run in and close their eyes and hope for the best, im talking about general toughness and willingness to fight in contested situations.
The second Reiwoldt has an opponent that can run with him and put on some basic physical pressure on him, he goes to water.
I remember this season, some WC kid who i have never heard of before was on Reiwoldt, and all he did was run with him and make a hard contest, Reiwoldt's arms were flapping around in just about every marking situations, he never looked like marking the ball!
Like i said above, on a day where everything goes his way, he'll destroy you but in 2005 more teams figured out Reiwoldt's weakness thats why the severe drop in form, not simply because of injuries!