Tyler O’Neill homered in his fifth straight opening day game to set a major league record, this time against the organization that drafted him, and the Boston Red Sox beat the Seattle Mariners 6-4.

Robbie Ray has been traded from Seattle to San Francisco for outfielder Mitch Haniger and pitcher Anthony DeSclafani in a swap of underperforming players coming off injuries.

Matt Carpenter capped an eighth-inning rally with a tiebreaking, two-run double off the glove of diving centerfielder Mike Yastrzemski, and the San Diego Padres beat the San Francisco Giants 6-4 for a two-game sweep of Major League Baseball’s first regular-season series in Mexico City.

Manny Machado put San Diego ahead in the seventh inning with his second homer and the 11th of the night, and the San Diego Padres outslugged the San Francisco Giants 16-11 in Major League Baseball’s first game in Mexico City.

Aaron Judge remains a free agent as baseball's winter meetings continue in San Diego.

The Seattle Mariners made one of the first big moves of the offseason by acquiring outfielder Teoscar Hernández from the Toronto Blue Jays in exchange for two pitchers.

The Seattle Mariners believe snapping their 21-year playoff drought is only the beginning.

Yordan Alvarez and his mighty bat did it yet again, launching a go-ahead, two-run homer in the sixth inning off Seattle ace Luis Castillo that lifted the Houston Astros over the Mariners 4-2 for a 2-0 lead in the AL Division Series.

Abraham Toro homered and drove in four runs, Cal Raleigh hit his 27th long ball of the season and the Seattle Mariners beat the Detroit Tigers 9-6 to complete a sweep of their doubleheader.

Cal Raleigh hit a game-winning home run with two outs in the bottom of the ninth inning and the Seattle Mariners ended the longest playoff drought in baseball with a 2-1 victory over the Oakland Athletics.

Mitch Haniger and Jarred Kelenic both homered twice, J.

Cal Raleigh homered twice, Eugenio Suárez and Jesse Winker each hit a two-run shot, and the Seattle Mariners overcame Shohei Ohtani’s four-hit performance to complete a three-game sweep of the Los Angeles Angels with an 11-7 victory.

Carlos Santana snapped an 0-for-17 slump with a go-ahead two-run homer during Seattle’s three-run seventh inning, and the Mariners rallied to beat the slumping New York Yankees 4-3.

Aaron Judge hit his 44th homer, Josh Donaldson went deep and drove in three runs, and the New York Yankees snapped a five-game losing streak by beating the Seattle Mariners 9-4.

Jesse Winker hit a grand slam, Marco Gonzales struck out seven and the Seattle Mariners beat the Los Angeles Angels 6-3 as Shohei Ohtani received a visit from trainers and continued to struggle.

Ty France hit a two-run homer in the third inning, George Kirby pitched six solid innings and the Seattle Mariners beat the Los Angeles Angels 2-1 to open a doubleheader.

The Houston Astros ended the Seattle Mariners’ winning streak at 14 games, with Jose Altuve and Yordan Alvarez homering in a 5-2 victory.

Justin Verlander pitched three-hit ball over eight innings for his first win since July 2020 and the Houston Astros beat the Seattle Mariners 4-0.

Gary Sánchez hit a grand slam into the third deck and Carlos Correa launched his first homer for the Minnesota Twins in a 10-4 victory over the Seattle Mariners.

Major League Baseball teams committed to an unprecedented $1.4 billion in salaries Wednesday, hours before the league locked out players following the 11:59 p.m. expiration of the sport's collective bargaining agreement.

Jose Suarez threw five strong innings, Brandon Marsh accounted for all the offense with a two-run double, and the Los Angeles Angels landed a major blow to Seattle’s postseason hopes by beating the Mariners 2-1.

Mitch Haniger hit two identical three-run homers and the Seattle Mariners gained precious ground in the AL wild-card race with a 13-4 win over the Oakland Athletics.

Ty France tied the game with a solo home run in the ninth inning and put the Seattle Mariners on top with an RBI single in the 11th before Kyle Seager belted a three-run homer in a 6-3 win over the Houston Astros on Sunday.

The New York Yankees have put closer Aroldis Chapman on the 10-day injured list because of inflammation in his left elbow.

Shohei Ohtani became the sixth player to reach the upper deck of T-Mobile Park with a majestic blast for his 33rd homer, but Mitch Haniger’s two-out grand slam in the eighth inning lifted the Seattle Mariners over the Los Angeles Angels 7-3.

Fernando Tatis Jr. became the fastest shortstop in history to hit 50 home runs, punctuating his three-run shot with a bat flip, and made another spectacular defensive play for the San Diego Padres, who routed the Seattle Mariners 16-1 for their seventh straight win.

Spencer Turnbull pitched the fifth no-hitter in the majors already this season, sending the Detroit Tigers to a 5-0 victory over the Seattle Mariners.

Detroit Tigers right-hander Spencer Turnbull has not allowed a hit through eight innings against the Seattle Mariners.

Prized prospect Jarred Kelenic made his first major league hit memorable with a two-run homer and later added a pair of doubles, leading the Seattle Mariners to a 7-3 win over the Cleveland Indians.

Julio Urías threw seven dominant innings of one-hit ball, striking out a career-high 11 and leading the Los Angeles Dodgers to a 1-0 win over the Seattle Mariners.

Minnesota Twins shortstop Andrelton Simmons has tested positive for COVID-19.

Mitch Haniger homered and hit the go-ahead sacrifice fly in the 10th inning to give the Seattle Mariners a 4-3 victory over the Minnesota Twins.