Duke and North Carolina. 

There's really no further explanation needed.

It's the greatest rivalry in college basketball and maybe all of sports, but Saturday's game at Cameron Indoor Stadium — the 253rd meeting in the series — lacks its usual Super Bowl-like hype with each team struggling to build a case for an NCAA tournament bid. 

Yet somehow, that makes this game even more important.

Instead of an ACC regular-season title or a battle of top-ranked teams, this rivalry game offers a life preserver for the winner while an anchor gets tied around the leg of the loser. 

"It'll always be intense because it's Duke and North Carolina," UNC coach Roy Williams said. "But there are some wounds that we're trying to get healed and problems we're trying to get fixed. I don't want to speak for Mike (Krzyzewski's) team, but I assume they have the same kind of feeling we do."

It's the first time since Feb. 27, 1960, that Duke (7-6, 5-4) and UNC (11-6, 6-4) have both entered this game unranked in the Associated Press' Top 25 poll. For a little context, in 1960, John F. Kennedy had just begun his presidential campaign and the United States was still nine years from landing on the moon. 

Duke coach Krzyzewski had just celebrated his 13th birthday. North Carolina went on to beat Duke 75-50 at Cameron Indoor.