The Green Bay Packers have sent out surveys to their fans to ask why their playoff match against the San Francisco 49ers took so long to sell out.
The Packers are renowned for their fanatical support, with a season ticket waiting list of more than 100,000 people.
However, six days before the wildcard playoff match they still had 40,000 tickets to sell and were forced to receive an extension from the NFL to get rid of the rest.
The match eventually sold out just two days before kickoff, and Packers president Mark Murphy signalled his intention to gain feedback on why it took so long for the tickets to go for such a big game.
In the survey, the Packers give their fans a list of possible reasons why they didn't come, including cost of tickets, playoff fatigue, quality of TV broadcast and the weather forecast, with the temperature well below freezing for the game.
The Packers have only ever not sold out for one playoff match before, and that came in 1982 in a first-round game against the St Louis Cardinals.
Green Bay eventually lost the match against the 49ers 23-20 thanks to a last-gasp field goal from Phil Dawson.
