Sheen had a pre-existing elbow injury that flared up, Diamondbacks President Derrick Hall said Monday.
Sheen takes batting practice at Chase Field in AZ →
"I will use this news as an opportunity to educate and drive awareness, while hopefully saving more lives in the future," he said. "I am in great hands, and my family and I are confident we will get through this successfully."
Diamondbacks president fighting prostate cancer →