Yankees vs. Red Sox LIVE: Score Updates, Key Highlights & How to Watch Tonight’s 2026 Rivalry Showdown

The latest chapter of the Yankees-Red Sox rivalry opens tonight at 6:45 p.m. ET in Fenway Park, where division-leading New York (13-9) visits Boston (9-13) for the first game of a three-game set. Luis Gil gets the ball for the Yankees against rookie left-hander Connelly Early, who brings a stingy 2.29 ERA into his second big-league start. Gil struck out nine Royals his last time out and will try to neutralize a Red Sox lineup that has struggled to find consistency, ranking 11th in the AL in OPS. Early’s sweeping slider will be tested by Aaron Judge, who already owns nine homers, and breakout first-baseman Ben Rice, the AL batting leader at .338. Key storylines to watch 1. AL East momentum shift The Yankees roll into Boston on a three-game winning streak after outscoring Kansas City 24-6 over the weekend, while the Red Sox just snapped a skid by edging Detroit 8-6 on Monday. With Tampa Bay only one game back, every head-to-head result has outsized impact on early-season positioning. 2. Judge vs the Monster Judge’s opposite-field power is tailor-made for Fenway’s right-center triangle, but his pull-side fly balls can die at the base of the Green Monster. He’s 19-for-82 lifetime at Fenway with seven home runs; expect Boston to pound him inside to force grounders. 3. Boston’s bullpen makeover Manager Alex Cora shuttled three relievers to Triple-A after Sunday’s loss, promoting hard-throwing righty Luis Guillén to reinforce a pen that owns a 5.12 ERA. How that unit handles the heart of New York’s order in the seventh and eighth innings could decide the series. 4. Injury returns on the horizon Gerrit Cole (elbow) traveled with the club and threw off flat ground Monday; he remains on target for a mid-May activation. Boston hopes right-hander Sonny Gray can rejoin the rotation during next week’s road trip. What it means tonight • For New York: A win would push the Yankees four games over .600 and keep them unbeaten (4-0) on their current six-game road swing. • For Boston: Taking Game 1 would halt a 5-7 stretch and inject life into an offense averaging just 3.7 runs per game in April. How to watch and stream • TV: TBS (national), NESN, YES Network • Streaming: MLB .TV (out-of-market), authenticated cable apps • Radio: WEEI 93.7 FM (BOS), WFAN 660/101.9 FM (NYY) Betting snapshot DraftKings lists Boston as a slight –121 money-line favorite, with the total set at 8.5 runs as of Tuesday morning. Weather forecasts call for a brisk 45°F first pitch and a 10 mph wind blowing out to left, conditions that could reward right-handed pull hitters. Projected starting lineups Yankees: Rosario 3B, Judge RF, Rice 1B, Stanton DH, Bellinger CF, Grichuk LF, Chisholm 2B, Caballero SS, Wells C Red Sox: Rafaela CF, Abreu RF, Story SS, Contreras 1B, Yoshida DH, Devers 3B, Casas LF, Valdez 2B, McGuire C Series outlook After tonight, the clubs meet again Wednesday (RHP Clayton Beeter vs RHP Tanner Houck) and Thursday (RHP Will Warren vs LHP Kyle Harrison). The rivals won’t see each other again until June 5–7 back in the Bronx, so Fenway’s first installment could set the narrative for the summer slate. SEO takeaway Fans searching for “Yankees vs Red Sox live stream,” “Fenway Park game time,” or “Yankees Red Sox pitching matchup” will find all the essential info here—game details, probable pitchers, latest injuries, betting odds, and series stakes—making this your comprehensive hub for the April 21, 2026 showdown in Boston.