Wednesday marked the first time the D-backs had gone to a hearing since 2001, when Damian Miller won his case against the team.
Injuries limited Trumbo to 88 games last season, his first with the D-backs after coming over from the Angels, and he hit .235 with 14 homers and 61 RBIs.
Steve Gilbert is a reporter for MLB.com. Read his blog, Inside the D-backs, and follow him on Twitter @SteveGilbertMLB. This story was not subject to the approval of Major League Baseball or its clubs.