Mariners Game Preview and Discussion: Boston Red Sox at Seattle Mariners

Aug 11, 2023; Seattle, Washington, USA; Seattle Mariners starting pitcher Luis Castillo (58) and pitcher Bryce Miller (50) prior to a game against the Baltimore Orioles at T-Mobile Park. Mandatory Credit: Steven Bisig-Imagn Images

The Mariners, Red Sox kick off a series today with two dueling pitching strategies. The Red Sox, knowing how left-handed heavy the Mariners are, will be starting a trio of lefties, causing the Mariners to make a roster move to get more right-handed (read more in the “roster move” section). Meanwhile, the Mariners will be utilizing the piggyback again, starting Bryce Miller. John wrote about the benefits of returning to the piggyback; read more here if you missed it.

This is the first time the Mariners will face the Red Sox this season. Get up to speed with the series preview here.

Lineups:

It’s Juneteenth, so the Mariners are wearing their Steelheads jerseys instead of the City Connects.

No nice graphic for the Red Sox, who made a last-minute lineup change. Isiash Kiner-Falefa is scratched with forearm soreness; Durbin moves up, and Marcelo Mayer, who missed yesterday with an illness but is apparently now well enough to play, enters the lineup.

UPDATED 6/19 at SEA: Gasper DH Rafaela CF Abreu RF Contreras 1B Duran LF Durbin 3B Mayer SS Narváez C Monasterio 2B Suarez P

, Red Sox (@RedSox) June 20, 2026

Roster move:

If you’re wondering who Wilson is in the lineup, it’s not Will Wilson magically returned from the 60-day IL; it’s newly-signed Weston Wilson. He’s basically a right-handed Miles Mastrobuoni, who was DFA’d today. Read more here.

Game information:

Game time: 7:10 PT because * * * fireworks * * *

TV: Mariners.TV with Aaron Goldsmith and Angie Mentink, with Brad Adam on pre and postgame and Ryan Rowland-Smith as sideline analyst

Radio: 710 AM Seattle Sports with Rick Rizzs and Gary Hill Jr.