After starting 2009 at high-A Visalia, he was promoted in April to the Diamondbacks Double-A affiliate, the Mobile BayBears. During a start on July 30, Parker injured his right elbow.
Parker started his job in 2009 at high-A Visalia and was elevated in April to the Diamondbacks' Double-A affiliate, the Mobile BayBears. He suffered an elbow injury on July 30 while playing for the team.