TheOak

Seattle Seahawks fans are proud of their "12th Man" legacy. The team even retired No. 12 for the fans.

The organization is just not ready for a 13th man supporting another team in their stadium.

Seattle will host the San Francisco 49ers in the NFC championship game on Sunday. Apparently, the Seahawks are willing to do whatever it takes to solidify home-field advantage.

According to SFGate.com, the Seahawks are limiting ticket sales to just six states and the Canadian provinces for the upcoming playoff game. Only credit cards with addresses from Oregon, Washington, Montana, Idaho, Alaska and Hawaii will be allowed to buy tickets for the game at CenturyLink Field.

Yes, California is among the states excluded from the list.

This is not the first time a professional team has gone to this extreme.

The Nashville Predators instituted a ticket policy for their games against the Chicago Blackhawks that prohibited fans from purchasing single-game tickets for the three home games in the rivalry this season, according to SportsOnEarth.com. Only certain zip codes were allowed to buy tickets to those games.

Seattle’s efforts to block San Francisco fans from taking over its stadium is admirable, but futile.

There are plenty of websites fans can purchase tickets on, like StubHub or Craigslist, and not have to worry about being blocked. Obviously, the Seahawks do not want to be responsible for selling thousands of tickets to 49ers fans, but they cannot prevent them from obtaining seats in their stadium.

However, it is still a great effort to make sure the 12th man does not have to sit next to a 49ers fan.

Y! SPORTS