Joseph Paul DeMaestri (December 9, 1928 – August 26, 2016),[1] nicknamed "Froggy", was an American shortstop in Major League Baseball who played for the Chicago White Sox (1951), St. Louis Browns (1952), Philadelphia / Kansas City Athletics (1953–59) and New York Yankees (1960–61).

[2] DeMaestri graduated a from Tamalpais High School in Mill Valley, California, and began his 15-year professional baseball career in the Boston Red Sox' organization in 1947.

[3] In December 1959, Demaestri was traded to the New York Yankees in the seven-player deal that famously brought Roger Maris to the Bronx Bombers.

[4] When the Yankees won the 1960 American League pennant, he appeared in his first and only World Series, getting into four games and collecting one hit, a single off Joe Gibbon of the Pittsburgh Pirates in the opening contest, in two at bats.

Dale Long had pinch hit for DeMaestri in the top of the ninth, and Clete Boyer had moved from third base to shortstop to take his place on defense.