The Mainz Athletics have a new shortstop. 22-year-old Trey Stover is replacing Joel Johnson on the roster, who is not coming back for a second year in the German Baseball-Bundesliga. Stover is from Lock Haven, Pennsylvania and went to the University of Hartford in Connecticut. After graduating he got drafted by the Kansas City Royals last summer. He spent one season in Rookie ball before getting released at the end of the year.