Major professional sports leagues in the United States and Canada
The Canadian Football League is the highest level of play in Canadian football. The league was organized in 1956 as a cooperative agreement between two regional leagues, the Big Four (which dated to 1907) and the WIFU (which was founded in 1936), and became independent from Football Canada in 1958. The league now consists of nine teams, all based in Canada. The Grey Cup is awarded annually to the champion every November and is the highest attended sporting event in the nation. The oldest extant teams, the Hamilton Tiger-Cats and the Toronto Argonauts, trace their origins to the late 1860s and early 1870s, which ranks them amongst the oldest professional sports teams of any kind still in existence on the continent. The CFL attempted an expansion into the United States in cities that had no NFL team between 1993 and 1995, though the expansion teams all either folded or relocated to Canadian cities.
Major professional sports leagues in the United States and Canada
The CFL's draft is limited to Canadian citizens, plus non-citizens who were raised in Canada. In addition to university/college football, the CFL draft also draws players from the long-established Canadian Junior Football League and its component leagues. The league also draws from the same pool of free agents as the NFL, with players who do not make the NFL often going north to seek work in the CFL. The CFL requires free agents to sign contracts, and thus stay in the league, for a minimum of two years. Unique to the CFL is the concept of the "negotiation list", which allows CFL teams to unilaterally declare exclusive rights to any given player. Described as an "enduring mystery," the negotiation list forces players to accept the offer they are given, usually at league minimum, with no leverage to negotiate with other teams; there is no order or limits to the negotiation list, and teams can add or remove players to a 45-position negotiation list without their permission and at any time, regardless of age. Since 2018, ten of the 45 players must be publicly announced.