Boston — Just outside of Fenway Park on Friday night, three chartered buses were parked along quiet Jersey Street.

On any normal game day, this thoroughfare would be closed to traffic and teeming with ticketed fans.

They'd be coming out of the souvenir shops, dining on lobster rolls, standing in beer lines or gathering at Luis Tiant's kiosk for a Cuban sandwich.

And you'd know just by the buzz and the energy in the crowd that it was a Yankees-Red Sox night, regardless of where the hometown team was in the standings.

Yet, in this COVID-19 season with no crowds, this was the strangest Fenway meeting in the century-plus history of the game's most enduring rivalry.

There was no one to razz the hated Yankees as they exited their buses and entered Fenway Park.

And there was nobody in the stands to moan or celebrate the Yankees' 6-5, 12-inning win, completing a lengthy back-and-forth battle in the Back Bay.

DJ LeMahieu's two-out, RBI double off Ryan Weber pushed the Yanks to their ninth-straight victory, sealed by Jonathan Loaisiga.

The late-night drama began in the ninth.

Down to their final out, Gary Sanchez launched a game-tying homer over the Green Monster.

That blast off Sox closer Matt Barnes was Sanchez's second homer in two nights, and it followed his two-run double in the seventh — signs of encouragement in his yearlong offensive struggle.

Both clubs stranded a runner at third with one out in the 10th, with Aroldis Chapman striking out Jackie Bradley Jr. and Michael Chavis to keep it going.

Luke Voit's leadoff RBI single in the 11th scored Mike Tauchman, who began the inning at second base.

But Loaisiga yielded an RBI single to Christian Arroyo before escaping a bases-loaded jam, striking out J.D. Martinez and getting Christian Vazquez to fly out.

Loaisiga stranded the tying run at third base in the 12th with one out.

And except for the whoops of the exuberant visitors, it was the quietest end to a Red Sox-Yankees game at Fenway Park ever.

"I thought about that earlier when we went out for BP," Brett Gardner said of the eerie silence before the Yankees' first and only visit to Fenway in 2020. "It's a special place to play, I've always enjoyed playing here.

"And I think one of things that makes this place so special is their fans and the passion they have for the game and the atmosphere they create on a nightly basis," Gardner said. "It's very similar to our fans in the Bronx, so we'll miss that this weekend.

"But hopefully, soon, we'll be playing in front of fans again."

On the heels of scoring 43 runs and belting 19 home runs in a record-setting three-game series sweep of the Toronto Blue Jays, the Yankees' lineup looked lost outside the Bronx for a long stretch.

Even with Aaron Judge and Giancarlo Stanton back in the same lineup for the first time since Aug. 8, Boston lefty starter Martin Perez tossed six scoreless innings, limiting the Yanks to just three hits and walk.

Still, the Yankees rallied against Boston's bullpen.

Batting No. 8 in a more potent lineup, Sanchez delivered a two-out, ground rule two-run double to right field in the seventh.

And in the eighth, Judge (single) scored on Stanton's one-out double to left before Ryan Brasier retired Voit on a hot liner to third baseman Rafael Devers and struck out Gleyber Torres.

Coming off a solid bounce back start, lefty Jordan Montgomery was charged with four runs over 4 2/3 innings.