Roof Collapses At Dallas Cowboys Practice Arena

More : An air-supported roof over the Dallas Cowboys practice field collapsed during a heavy thunderstorm Saturday afternoon, leaving 12 people injured, one critically, authorities said. About 70 people, including more than two dozen of the teams rookies, were in the facility when it was blown down shortly before 3:30 p.m. (4:30 p.m. ET), team officials said.