43. Jake Beckley

The modern Major League Baseball has a history of labor battles, but the pioneer of player autonomy, Jake Beckley—known as "Eagle Eye" for his strike zone judgment—was a foundational figure in late-19th-century baseball. Purchased by the Pittsburgh Alleghenys in 1888, the left-handed first baseman quickly became a star in Western Pennsylvania. Beckley was known for his low-variance hitting and durability, leaving a legacy of hitting milestones and challenging the sport's financial hierarchy.

His debut appearance after arriving in town during the 1888 season showcased top-tier talent, with the 20-year-old rookie posting an impressive .343 batting average over 71 games. He quickly established contact hitting and run production as a consistent part of his game, surpassing the 300 batting average again in 1889 and driving in 97 RBIs.

Beckley’s consistent rise in the National League was abruptly interrupted in 1890 by the emergence of the Players’ League. While many stars left the traditional league with lofty rhetoric, Beckley was notably honest about his motives, telling reporters he was "only in this game for the money’ when he joined the Pittsburgh Burghers. Despite the league's brief existence, Beckley performed exceptionally well, leading with 22 triples and driving in 123 runs, showcasing his talent during this short stint.

After stabilizing financially, Beckley rejoined the National League team, now known as the Pirates, for the 1891 season. Following a highly successful comeback, he experienced a difficult slump in 1892, with his batting average dropping to .236. Showing the intense internal resilience that earned him his famous nickname, "Eagle Eye,” he launched an impressive multi-year recovery. Over the next three summers, he greatly improved his performance, achieving batting averages of .303, .345, and .328, and driving in more than 100 runs each season, becoming a key player in the Steel City offense.

Tragically, after he limped out of the gate to a highly disappointing start during the 1896 schedule, the front office moved aggressively to reshape the core. In a landscape-shifting mid-season deal, management traded the franchise icon to the New York Giants for Harry Davis and cash, drawing a sudden curtain on his historic tenure in Pittsburgh.

With Pittsburgh, Beckley smacked 1,140 of his 2,938 career Hits while batting .300.  The Baseball Hall of Fame inducted Beckley via the Veterans Committee in 1971.