The Blue Jays needed some late-game heroics from George Springer to oust the Mariners and win Game 7 of the ALCS.

The Toronto Blue Jays are heading to their first World Series since 1993.

Springer, the Blue Jays designated hitter with a history of tantalizing the Mariners, delivered the blow that defined Seattle’s half-century of almosts — a mesmerizing, go-ahead, three-run homer that...