I'm surprised we are just now hearing about this...though my gues is it's pretty common. There were a lot of compalints about Coughlin's offseason program too....before the Giants won the Superbowl.
I'd never even heard of Dan Stevenson but he claims that himself and others, like Jordan Black, were injured in mini-camp drills that violate the CBA with the NFLPA. Claims they were doing full-contract drills in only helmets with no pads.
BTW, the Texans' legal counsel on this is named "Suzie".