The Boston Red Sox welcome the Seattle Mariners to Fenway Park on Wednesday, September 2, 2026, with first pitch set for 4:10 PM ET. Patrick Sandoval gets the ball for Boston against Seattle's Bryce Miller in what shapes up as a quality pitching matchup. With September baseball in full swing and every game carrying added weight in the standings, the Red Sox need to protect their home turf and take care of business in front of the Fenway faithful. Coverage is available on NESN and WEEI 93.7 FM.

Starting Pitchers: Patrick Sandoval vs. Bryce Miller

Patrick Sandoval draws the start for Boston. A left-handed pitcher known for his ability to generate soft contact and work deep into games, Sandoval will need to be sharp against a Mariners lineup that has always had the potential to grind through at-bats. Fenway's dimensions don't make life easy for pitchers, but Sandoval's approach — working both sides of the plate and leaning on his changeup — gives him a fighting chance to keep Seattle's bats in check.

Bryce Miller takes the mound for Seattle. The right-hander has shown the ability to miss bats at the big-league level, and the Red Sox lineup will need to stay disciplined and look for early counts to get into Miller's pitch mix. If Boston's hitters can get Miller working early and push his pitch count up, they give the bullpen a chance to stay fresh late in the game.

Boston Red Sox Starting Lineup

• 1. Roman Anthony — DH
• 2. Mickey Gasper — 1B
• 3. Ceddanne Rafaela — CF
• 4. Wilyer Abreu — RF
• 5. Nick Sogard — 2B
• 6. Caleb Durbin — 3B
• 7. Jarren Duran — LF
• 8. Trevor Story — SS
• 9. Connor Wong — C

Keys to Watch at Fenway Park

Roman Anthony Leading Off

Roman Anthony gets the leadoff spot at DH, which puts a premium on his on-base ability right out of the gate. How Anthony handles Miller in his first at-bat will set the tone for the inning and signal whether Boston's offense is ready to work.

Ceddanne Rafaela and Wilyer Abreu in the Heart of the Order

Rafaela batting third and Abreu fourth gives the Red Sox legitimate run-producing threats in the middle of the lineup. Both players have the athleticism and bat speed to punish a fastball left over the plate. Seattle's pitching will need to be careful with that stretch of the order.

Sandoval's Command Early

Pitching at Fenway demands you locate from the first pitch. If Sandoval commands his offspeed pitches and keeps the Mariners off-balance, Boston should be in solid shape through the middle innings. Any early walks, though, and this crowd will start feeling the tension.

Prediction

This one has the feel of a tight, low-scoring game driven by both starters. Boston's lineup has enough diversity — speed at the top, power in the middle, grit at the bottom — to manufacture a run or two against a pitcher like Miller. Sandoval pitching with a home crowd behind him at Fenway is an advantage worth noting. Red Sox win, 3-2, in a game that stays close wire to wire.