The D-backs will honor the life of Brad Harper, a Phoenix firefighter who was killed while responding to a fire last month, before their Friday evening game against the Reds.
Harper's widow, Lena, will throw out the ceremonial first pitch and will be supported by friends and family, including several firefighters from the same academy where Brad Harper was stationed.
He was killed while responding to a mulch fire in Phoenix on May 19.
Joey Nowak is a reporter for MLB.com. Follow him on Twitter at @joeynowak. This story was not subject to the approval of Major League Baseball or its clubs.