In an equal parts stunning and exhilarating development , unlikely hero Travis Ishikawa catapulted the San Francisco Giants to their 23rd National League pennant in franchise history — and the sixth since the franchise moved to California in 1957 — with a pennant-winning three-run walk-off home run in Game 5 of the NLCS on Thursday night . In doing so, Ishikawa became the fourth player in MLB history to hit a postseason pennant-winning walk-off home run for his his team, joining Magglio Ordonez, Aaron Boone and Chris Chambliss on that very short list. It was a historic moment, and for many fans spanning multiple generations it immediately conjured up memories of Bobby Thomson's pennant-clinching walk-off homer for the then New York Giants in 1951, which became known as The "Shot Heard 'Round the World." To this day Thomson's home run off Dodgers hurler Ralph Branca remains one of the game's most famous and talked about moments in baseball history, not only because of the historic circumstances, but because of Russ Hodges' classic "The Giants win the pennant! call." With Ishikawa's home run now joining it in Giants' lore, the two moments will always be connected in some...