Harold Joseph "Pie" Traynor was an American third baseman, manager, scout and radio broadcaster in Major League Baseball (MLB) who played his entire career between 1920 and 1937 for the Pittsburgh Pirates. Traynor batted over .300 ten times, posting a career average of .320, and had seven seasons with over 100 runs batted in (RBI). With home runs limited by playing in Forbes Field, the most difficult park for power hitting in the National League (NL), he compensated by reaching double digits in triples eleven times, leading the league in 1923. He batted .346 in the 1925 World Series to help the Pirates take their first championship in 16 years.

A third baseman, abbreviated 3B, is the player in baseball or softball whose responsibility is to defend the area nearest to third base — the third of four bases a baserunner must touch in succession to score a run. In the scoring system used to record defensive plays, the third baseman is assigned the number 5.