SCOTTSDALE, Ariz. -- As the D-backs honor their club history during their upcoming 20th anniversary season, they will also bring back a piece of baseball lore -- the bullpen cart.
The OnTrac Bullpen Cart will be available to transport relief pitchers from both bullpens at Chase Field to the mound.
• The life, death and rebirth of the bullpen cart
"We have been working on this idea for several years, and there's no more appropriate time to bring back the bullpen cart than this season, as we celebrate our 20th anniversary," said D-backs team president/CEO Derrick Hall. "Fans of baseball in the 1950s, '60s, '70s, '80s and even the '90s enjoyed watching their favorite players emerge from the bullpen in various vehicles, and we're excited for this special delivery to come to Chase Field."

The Cleveland Indians are credited as the first team to use a bullpen cart. In 1950, the team used a little red wagon, while the cart was first used by the White Sox in '51.
The bullpen cart grew in usage over the years before beginning to disappear. The last known use of a motorized vehicle in the Majors was in 1995, when the Brewers had a motorcycle with a sidecar.
The D-backs will be the first Major League team to bring the bullpen cart back.
The OnTrac Bullpen Cart is being fabricated by SportsKartz. OnTrac specializes in delivery services throughout the eight western-area states, making it a natural partner for the project.
"It gives me great pride to see the OnTrac brand on the bullpen carts for the Diamondbacks," said OnTrac president Rob Humphrey. "Our company is built around delivering exceptional service and exceeding our customer's expectations. I am confident that the OnTrac Bullpen Cart will continue this high level of service when delivering Diamondback pitchers to the games."