TORONTO — The Seattle Mariners are on the brink of making history.

They’re the only current MLB team never to appear in a World Series. That could change tonight.

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When the team takes the field tonight at Toronto’s Rogers Centre for Game 6 of the American League Championship Series, the Mariners will be one win away from clinching the franchise’s first-ever World Series berth — a milestone 49 years in the making.

Seattle holds a 3-2 lead in the best-of-seven series against the Toronto Blue Jays, thanks in part to a dramatic 6-2 comeback win in Game 5, highlighted by Geno Suárez’s eighth-inning grand slam — just the second in Mariners postseason history. A win tonight would punch Seattle’s long-awaited ticket to the Fall Classic, as well as cap off a season that has already seen the team reach unprecedented heights.

“This is the closest we’ve ever been,” said Mariners manager Dan Wilson, who led Seattle to a 90-72 regular-season record and the club’s first AL West title since 2001 in his first full year at the helm, in a press release. “We’ve got a group that believes in each other, and we’re ready.”

Seattle’s postseason has been defined by late-inning heroics and unwavering resilience. Of their six playoff wins, three have come in their final at-bat — including Game 5’s eighth-inning explosion.

Cal Raleigh, who blasted a game-tying home run before Suárez’s slam, has been a postseason force, slashing .333/.435/.692 with four home runs and a 1.127 OPS. He’s reached base in all 10 of Seattle’s playoff games.

Raleigh’s regular-season campaign was historic in its own right. The All-Star catcher led the Majors with 60 home runs, breaking MLB records for most home runs in a season by a primary catcher and a switch-hitter — and surpassing Mariners legend Ken Griffey Jr. for the franchise single-season mark.

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Logan Gilbert, nicknamed “Walter,” will get the start tonight for Seattle. The right-hander is 1-0 with a 2.45 ERA this postseason, and tossed six dominant innings in his last start on full rest. He’ll face a Blue Jays lineup looking to stave off elimination and force a Game 7.

Toronto, for its part, is hoping for a reversal of recent history. The Mariners are a perfect 4-0 in postseason games at Rogers Centre and famously swept the Blue Jays in the 2022 AL Wild Card Series, including a historic comeback from a 7-run deficit in Game 2.

Seattle’s road to this moment has been long and, at times, agonizing. The Mariners reached the ALCS in 1995, 2000, and 2001, but never got closer than two wins away from the Pennant. This year, they’re one win away.

“This team has heart, depth, and a belief that we can beat anybody,” said Suárez, whose two home runs in Game 5 earned him a place among Mariners postseason legends.

Should Seattle win tonight, they will advance to face the reigning World Series champion Los Angeles Dodgers, who swept the Milwaukee Brewers in the NLCS. Regardless of outcome, tonight’s game marks the 173rd of the Mariners’ season — the most in franchise history.

And yet, just one more win remains to make history complete.

First pitch is at 5:03 p.m.