 In early October, Aron was diagnosed with a nerve irritation in his right hip which Werder Bremen announced they would treat "in a conservative manner" and which would keep him out of action for a minimum of three weeks.On October 28, he underwent hip surgery that would leave him unable to play for "the coming weeks".However, after multiple attempts at a comeback, His season was ruled to be over by club CEO Thomas Eichin on March 24.