Seattle Mariners pitcher Luis Castillo is a hot commodity on the offseason trade market.

Ken Rosenthal of The Athletic reported that the right-handed starting pitcher has been checked in on by the Chicago Cubs, Boston Red Sox, Baltimore Orioles and New York Mets.

"His durability and 3.56 career ERA are two reasons the Chicago Cubs, Boston Red Sox, Baltimore Orioles and New York Mets are among the teams to at least inquire on him, according to league sources and reports," Rosenthal wrote.

Castillo went 11-12 with a 3.64 ERA and 175.1 innings in 2024. The 31-year-old is a three-time All-Star and is under contract through 2027 with a vesting option for 2028.

He comes with years of control and has been healthy in recent seasons, adding to his value. All of the team's that checked in on him could benefit from his experience and durability, although his no-trade clause makes his next destination more controllable if he were to get dealt.

The Cubs recently landed Houston Astros outfielder Kyle Tucker via a trade and have been reported to still be seeking a starting pitcher on the trade market. Chicago has a solid farm system and could look to deal from some of it to bring Castillo to the friendly confines.

The Red Sox made a splash and acquired Chicago White Sox lefty Garrett Crochet to headline the rotation. Another arm would help stabilize the rotation and allow Boston to push forward in the AL East.

The Orioles made the playoffs for a second consecutive season and have a young core that is shaping up to be one of the best in MLB. The team also could lose ace Corbin Burnes, who still sits in free agency and is the top arm available.

The Mets made the move of the offseason by signing outfielder Juan Soto to the biggest contract in MLB history. The franchise has also added multiple arms via the open market and dealing for Castillo would help New York remain a force in the NL.