The 1973 Ohio State vs. Michigan football game was one of the most controversial games in NCAA history. In this game, both teams were undefeated, with Ohio State ranked first, and Michigan ranked fourth. A conference championship, Rose Bowl appearance, and possible national championship were on the line in this monumental game, part of the hotly contested stretch of the rivalry known as The Ten Year War. A then-NCAA record crowd of 105,233 watched the game at Michigan Stadium in Ann Arbor.