CFL Canadian football league

NFL Europe, although that's over now, Canadian Football League (CFL).

CFL (canada) or NFL Europe

CFL and USFL

Why not the NFL Europe, or NFL Europa. Sure it is shut down but the question CLAIMS the XFL is popular and it shut down after ONE SEASON(heck barely made it through that).

Canadian Football League(CFL)
produced many good players who were *castoffs* and went back to the NFL and dominated *cough* Warren Moon *cough*

CFL and the European NFL are the only ones I know that you didn't mention.

CFL!!!!!!!!!!!

the cfl it has had many great players over the years such as warren moon and joe thiesman.