Chase Outlaw, of Hamburg, Ariz., dismounts Sun Dome on Jan. 17 during the Professional Bull Riders Buck Off, in New York's Madison Square Garden. Serious injuries are occupational hazards for bull ...

Kasey Hayes rides Shaft during the Professional Bull Riding Tour stop at the Denny Sanford Premier Center on March, ... Not even helmets help pro bull riders May 26, 2015 12:00 AM Email. Link ...

SIOUX FALLS | Kasey Hayes hopped on the bovine beast trapped in the narrow holding pen like he'd done hundreds of times. He adjusted a tight rope on his left ...

In this Jan. 17, 2015, file photo, Chase Outlaw, of Hamburg, Ariz., dismounts Sun Dome during the Professional Bull Riders Buck Off, in New York's Madison Square Garden.

SIOUX FALLS, S.D. (AP) Kasey Hayes hopped on the bovine beast trapped in the narrow holding pen like he'd done hundreds of times. He adjusted a tight rope on his left hand, found his balance and ...

SIOUX FALLS, S.D. (AP) Serious injuries such as bone fractures and dislocations are occupational hazards for bull riders, but doctors, riders and researchers say concussions are at the top of the ...