IRVING, Texas (AP) - Dallas 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 on Saturday.

The storm hit while 27 rookie players were going through workouts. There were about 70 people in the facility, counting coaches, other team personnel and media, officials said.

Ten of the injured were taken by emergency vehicles. Two others went to hospitals on their own. Names and details of their injuries were not released due to privacy issues.

Former coach Dan Reeves, DeCamillis' father-in-law, said 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.

"This worked out very, very well from a medical point of view," said Dr. Paul Pepe, head of emergency medical services for Dallas County Hopsital. "Right now, I think we don't have anybody who is in a life-threatening situation."