Hi  Jamie
I've collected these cards for many years and have not seen any "fakes" in this series.
George Mikan is the key in the Basketball series. A nice one goes for big $$$$. Sammy Baugh is the key in the FB series. More important are the 36 FB cards whose # is divisible by 
3.
 v v v v v v v
 v v v v v v v
 
Good Luck.
TED Z
T206 Reference
.