A few years back it was common for Football cards primarily early 2000s before Topps dropped out, but it was usually the Donruss sets and the sets that would break the set down by teams and the same 3 or 4 players from each team were part of the 100 card base set.
I collect: Baseball, Football, Hockey, Mostly Vintage pre1980, My Homie teams - Washington/Baltimore Teams Senators (Twins, Rangers), Expos/Nationals, Redskins, Capitals, Bullets/Wizards - HOFers - Non-sport (mostly TV shows and movies).
My Trade List is very much a work in progress
CaptKirk42s Trading Card Blog Curly W Cards Strive For '65 YouTube klandersen42