Physically challenged cowboys test their limits

They have to overcome conditions such as amputations, partial blindness and deafness

Salvador Espinoza spends his days in a wheelchair due to a spinal cord injury that left him paralyzed from the waist down. When he mounts his horse and tightens the back brace that helps him keep upright in the saddle, he transforms into a charro, or Mexican cowboy.

In the traditional Mexican sport of charreria, this country's version of rodeo, they say you have to be agile, tough and brave.