You've probably heard the term "six degrees of separation."
That's about three degrees more than the forecast for Sunday's NFC playoff game between the Seattle Seahawks and Minnesota Vikings in Minneapolis.
It is the Vikings' first outdoor home playoff game in 39 years, and frigid weather is expected. Even hardy Minnesotans seem apprehensive, with tickets available on the secondary market for less than $50 -- much cheaper than this weekend's three other wild-card matchups.
Sunday's expected high temperature of 3 degrees would mark the coldest home playoff game in the history of the Vikings, a team that played outdoors at Metropolitan Stadium from 1961 to 1981 and at the University of Minnesota's TCF Bank Stadium in 2014 and 2015.