Roger Philip Bresnahan, nicknamed "the Duke of Tralee", was an American player and manager in Major League Baseball (MLB). As a player, Bresnahan competed in MLB for the Washington Senators (1897), Chicago Orphans (1900), Baltimore Orioles (1901–02), New York Giants (1902–1908), St. Louis Cardinals (1909–1912) and Chicago Cubs (1913–1915). Bresnahan also managed the Cardinals (1909–1912) and Cubs (1915). He was a member of the 1905 World Series champions.

The Washington Senators were a 19th-century baseball team. The team was also known as the Washington Statesmen and the Washington Nationals. The team played at Boundary Field.