The bizarre history of the bullpen cart is why you should be so happy it's back By Michael Clair | March 9, 2018 This browser does not support the video element. [Empty Body] More from MLB.com Chase Field roof to be fully functional for 2025 opener Mike Hazen's to-do list before 2025 season D-backs players react to Corbin Burnes signing Diamondbacks still look to add after Corbin Burnes Corbin Burnes gives D-backs two aces