I think they closely resemble the signs/symbols of the zodiac. Go look up which famous NFL players have birthdays that correlate with each zodiac symbol that are most likely to get a card. For example, the first symbol looks like cancer (crab). If you google famous NFL birthdays zodiac cancer the second name on the list is Zeke, with LT (the rb), and Pat P not far behind him. Do the same search for the 6th symbols which looks like Aries (ram) and some the first couple of names are JJ Watt, Sherman, Sean Taylor, and Von Miller. I could be wrong but the symbols in that picture resemble the zodiac a little too much in my opinion for it to just be a coincidence.
I think they closely resemble the signs/symbols of the zodiac. Go look up which famous NFL players have birthdays that correlate with each zodiac symbol that are most likely to get a card. For example, the first symbol looks like cancer (crab). If you google famous NFL birthdays zodiac cancer the second name on the list is Zeke, with LT (the rb), and Pat P not far behind him. Do the same search for the 6th symbols which looks like Aries (ram) and some the first couple of names are JJ Watt, Sherman, Sean Taylor, and Von Miller. I could be wrong but the symbols in that picture resemble the zodiac a little too much in my opinion for it to just be a coincidence.