1941 Harvard–Navy lacrosse game
The Harvard-Navy lacrosse game of 1941 was an intercollegiate lacrosse game played in Annapolis, Maryland, between the Harvard University Crimson and the United States Naval Academy Midshipmen on April 4, 1941. Before the game, the Naval Academy's superintendent told Harvard that the Navy team would not play against a racially integrated team.
Source: Wikipedia — 1941 Harvard–Navy lacrosse game (CC BY-SA 4.0)