Took me a while, but I was able to dig up and scan some of the USAC teams owned by the MLB players.
Chris Hoiles used checkered flags and two Baseball Bats in his logo, and his car number was 23, which I assume might have been his MLB uniform number.
Doug Jones incorporated a Baseball in his Motorsports logo.
Here is Gus Wasson in the Hoiles #23 at Paragon's USAC Sprintweek race.
Here is Wasson in the Hoiles #23 pavemant car at Winchester.
The Chris Hoiles hauler and logo at Paragon,
The Doug Jones Motorsports #27 and Aaron Mosley at the Paragon USAC Sprintweek race.
Close up of the Doug Jones Motorsports logo on the side of the hood.
And speaking of Walter Payton, he actually did a little driving also, seen here at the SCCA/Oldsmobile Pro Series race at the Mid Ohio Sports Car Course in 1991 as part of the CART race. He is in the white #34, which was sponsored by Chalkline | Nikko Toy Company USA | NFL Properties | Proset Trading Cards.
