Jones -- who pitched for the Padres from 1972-80, while winning the '75 ERA title and '76 National League Cy Young Award -- said recently that he's "doing well" in his recovery. He finished 38 days of radiation treatment on Feb. 1 and must wait until May for another test to determine whether he's cancer free.
"Couple more weeks of prayers, and hopefully I've got all the cancer out of my throat," Jones said during Spring Training.
Jones also threw out the first pitch before the 2016 All-Star Game at Petco Park.
The Padres also announced the rest of their Opening Day festivities on Wednesday. Stephany Negrete's national anthem will be followed by a flyover of F-35s. All fans in attendance will receive an Opening Day T-shirt.