Theodore Roosevelt "Double Duty" Radcliffe was a professional baseball player in the Negro leagues. An accomplished two-way player, he played as a pitcher and a catcher, became a manager, and in his old age became a popular ambassador for the game. He is one of only a handful of professional baseball players who lived past their 100th birthdays, next to Red Hoff and fellow Negro leaguer Silas Simmons.

In sports that require a player to play on offense and defense, a two-way player refers to a player who excels at both. In sports where a player typically specializes on offense or defense, or on pitching or batting, it refers to a player who chooses to do both.