According to a report from Bob Nightengale of USA Today, the M's were offered a young infielder for Castillo, but said no.

The Los Angeles Dodgers are desperate for help in the outfield. To take Michael Conforto's spot, they could trade for this ...

The Mariners have reportedly made pitcher Luis Castillo "off limits" in trade talks. "One club who offered a young infielder ...

We take a look around baseball to see how players from the 2023 and 2024 Seattle Mariners rosters are doing with their new ...

The Seattle Mariners bullpen has been one of the most volatile units on the team in 2025 in terms of transactions. Right-handed relievers Troy Taylor and Matt B ...

The Seattle Mariners bullpen has been arguably the most volatile unit on the team through the first 17 games of 2025. The ...

Seattle is looking to upgrade its lineup, but is not currently interested in trading from its vaunted rotation to do so. Read ...

The New York Yankees signed Max Fried this offseason, but an injury to Gerrit Cole could force them to look for pitchers at ...

On Friday, Newsweek's Zach Pressnell named Mariners three-time All-Star Luis Castillo as a potential Yankees trade target, ...

The Seattle Mariners and Cleveland Guardians made a trade this morning. The Mariners are 4-7 and sit four games back of first ...

Woo would immediately slot into a Red Sox pitching staff filled with injuries. Bryan Bello, Lucas Giolito, Kutter Crawford, ...