Newly-signed catcher Tucker Barnhart will reportedly compete with 26-year-old Jose Herrera to serve as the backup catcher for the Arizona Diamondbacks, per MLB.com's Steve Gilbert. While Gabriel Moreno has the starting spot, it is not yet determined who will serve as the backup, and the team could even bring in another backstop to add into the mix. Neither player offers much offensive upside, but the 32-year-old Barnhart is known for his defensive prowess. Regardless, it sounds as though both players will have the opportunity to win the role.