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Red Sox's Mookie Betts promised a fan he would homer for him. He
![New York Yankees dominated by Boston Red Sox; Mookie Betts hits 3 HR](https://www.usatoday.com/gcdn/presto/2019/07/27/USAT/4434fe1b-666b-41d1-9fa4-4f35e2001ed0-USATSI_13106062.jpg?crop=3737,2102,x0,y0&width=3200&height=1800&format=pjpg&auto=webp)
MLB: Red Sox OF Mookie Betts slugs three homers against Yankees
![New York Yankees dominated by Boston Red Sox; Mookie Betts hits 3 HR](https://img.mlbstatic.com/mlb-images/image/private/ar_16:9,g_auto,q_auto:good,w_1024,c_fill,f_jpg,dpr_3.0/mlb/o93lkmitv57f1dsclkcl)
Mookie Betts hits three homers vs. Yankees
![New York Yankees dominated by Boston Red Sox; Mookie Betts hits 3 HR](https://sportsmax.tv/media/k2/items/cache/a73a8ee170809ebc41e6340be1fa511a_XL.jpg)
Yankees walk-off in extra innings against Red Sox, Blue Jays mount
![New York Yankees dominated by Boston Red Sox; Mookie Betts hits 3 HR](https://cdn.britannica.com/53/112553-050-D28145FD/Carl-Yastrzemski.jpg)
Boston Red Sox, History & Notable Players
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Josh Donaldson homers as Yankees beat Red Sox again
![New York Yankees dominated by Boston Red Sox; Mookie Betts hits 3 HR](https://nypost.com/wp-content/uploads/sites/2/2020/08/Aaron-Judge-5.jpg?quality=75&strip=all)
The other reason Yankees-Red Sox rivalry isn't the same
![New York Yankees dominated by Boston Red Sox; Mookie Betts hits 3 HR](https://nypost.com/wp-content/uploads/sites/2/2023/09/newspress-collage-m5e4408n1-1693612203823.jpg?quality=75&strip=all&1693597814)
Mookie Betts just had one of the best months in baseball history
![New York Yankees dominated by Boston Red Sox; Mookie Betts hits 3 HR](https://staticg.sportskeeda.com/editor/2022/05/837bb-16528255528380-1920.jpg)
The Boston Red Sox chose to trade Mookie Betts instead of pay him
![New York Yankees dominated by Boston Red Sox; Mookie Betts hits 3 HR](https://arc-anglerfish-washpost-prod-washpost.s3.amazonaws.com/public/I2Y6UQBONZHEXNBXAFN47LDBQ4.jpg)
Boston Red Sox beat New York Yankees in AL wild-card game at
![New York Yankees dominated by Boston Red Sox; Mookie Betts hits 3 HR](https://ca-times.brightspotcdn.com/dims4/default/90e9c9c/2147483647/strip/true/crop/5472x3648+0+0/resize/1200x800!/quality/75/?url=https%3A%2F%2Fcalifornia-times-brightspot.s3.amazonaws.com%2Fba%2F3d%2Fbf8e20b7be2d9f0654f651f735da%2F6823d5e06bec4c589aae06673d00f18b)
Adam Duvall hits 3-run homer as Boston Red Sox top Los Angeles
![New York Yankees dominated by Boston Red Sox; Mookie Betts hits 3 HR](https://e00-marca.uecdn.es/assets/multimedia/imagenes/2021/09/30/16330021741057.jpg)
MLB News: Blue Jays top Yankees and Red Sox win over Orioles
![New York Yankees dominated by Boston Red Sox; Mookie Betts hits 3 HR](https://img.bleacherreport.net/img/images/photos/003/768/147/hi-res-40d2c5c973717bb56931a34372047e63_crop_north.jpg?1539051483&w=3072&h=2048)
Mookie Betts, Red Sox Destroy Aaron Judge, Yankees 16-1 to Take 2
![New York Yankees dominated by Boston Red Sox; Mookie Betts hits 3 HR](https://www.reviewjournal.com/wp-content/uploads/2020/02/13334106_web1_Red-Sox-Arbitration-Baseball.jpg)
Los Angeles Dodgers, New York Yankees favored to win World Series