Although Ron Santo didn't play in 1975 he still had a 1975 baseball card. In his final card, Ron Santo appearred non-airbrushed in a White Sox uniform for the one and only time. The 1975 Topps football cards had a yellow football helmet with the player's position in it. To adapt the design for baseball I converted it into a circle. I considered making it into a baseball but the white ball against the white border just looked wrong.