"There isn't a 100 percent way you can prevent somebody from injury," Jackson said. "You can be the healthiest person in the world, and sometimes things happen. I don't know if there is a 100 percent for sure answer. Who knows? I don't think I've done anything super special. I work hard, but half of it is being lucky and blessed as well."
Jackson said he didn't pitch a lot in high school, and he now makes sure he gets his arm loose and throws every day. The durable right-hander has reached at least 175 innings in six seasons.
"Dudes are throwing hard nowadays," he said. "There's always a chance for injury. The only thing you can do is work hard and try to be as preventative as possible. There's no for sure answer to stop someone from getting hurt."
Carrie Muskat is a reporter for MLB.com. She writes a blog, Muskat Ramblings, and you can follow her on Twitter @CarrieMuskat. This story was not subject to the approval of Major League Baseball or its clubs.