"We have a lot of faith in our medical staff here," manager Joe Maddon said on Tuesday. "I consider Ron Porterfield the best trainer in Major League Baseball. Once our guys get their hands on him, we feel very optimistic that we can get him back."
Crain, who said via Twitter that he was "honored to be given this opportunity," is scheduled to arrive in Florida on Wednesday.
Sam Strong is an associate reporter for MLB.com and Bill Chastain is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.