IRVING, Texas — Cowboys special teams coach Joe DeCamillis broke his back and 11 more were injured when winds just shy of tornado strength ripped through the roof of the team's indoor practice facility during a rookie minicamp today.

Former coach Dan Reeves, DeCamillis' father-in-law, says the first-year Dallas assistant has a couple of broken vertebrae in his lower back.

Reeves added DeCamillis probably will have surgery. The coach was seen being removed on a stretcher wearing a neck brace.

The storm hit while 27 players were going through workouts. Officials say there were about 70 people in the facility.

Of the 12 hospitalized, 10 were taken by emergency vehicles and two went on their own.