The Pittsburgh Keystones was the name of two historic professional Negro league baseball teams that operated in 1887 and again in 1921 and 1922. The first team was a member of the first black baseball league in 1887, the League of Colored Baseball Clubs. The league only lasted a week, which resulted in a 3-4 record for the Keystones, an included Weldy Walker, the second African-American to play in the major leagues and future hall of famer, Sol White.