The Seattle Mariners recently announced the acquisition of Dane Dunning, a right-handed pitcher formerly with the Texas Rangers, on a minor league agreement. This move introduces a familiar presence into the Mariners' system, offering both experience and versatility. Dunning's journey through professional baseball has been marked by significant moments, including a pivotal role in the Rangers' 2023 World Series victory, showcasing his potential to contribute meaningfully to a team's pitching rotation or bullpen.
Dunning's professional baseball career began in 2016 when he was selected as a first-round pick by the Washington Nationals out of the University of Florida. His early career saw him involved in several trades, notably moving to the Chicago White Sox as part of a package for outfielder Adam Eaton in 2017. He made his MLB debut with Chicago in 2020 before being traded to the Texas Rangers for Lance Lynn prior to the 2021 season.
During his tenure with the Rangers, Dunning experienced fluctuating performance. In 2021, he posted a 5-10 record with a 4.51 ERA, followed by a 4-8 record and a 4.46 ERA in 2022. However, 2023 marked a career high point, as he achieved a 12-7 record with a 3.70 ERA over 35 appearances, including 26 starts, contributing significantly to the Rangers' championship season. His performance dipped in 2024 and 2025, leading to his recent signing with the Mariners.
The addition of Dunning offers several strategic advantages for the Mariners. Firstly, he provides critical depth for their starting rotation, which currently includes established pitchers like Logan Gilbert, Bryan Woo, Luis Castillo, Bryce Miller, and George Kirby. His experience makes him a reliable contingency plan should any of the primary starters face injuries during spring training. Secondly, Dunning's ability to pitch in relief, with 34 career bullpen appearances, makes him a valuable asset for flexible roster management, particularly if the team considers transitioning prospects like Emerson Hancock to a relief role.
Moreover, with several key relievers participating in the World Baseball Classic, Dunning is expected to receive ample opportunities to showcase his capabilities during spring training, which commences on February 12. This situation allows him to compete for a spot on the active roster and demonstrate his readiness to contribute. The Mariners are also keeping an eye on their prospects, with four players recently featured in Baseball America's Top 100 rankings, including Lazaro Montes as a top outfield prospect, and Julio Rodriguez and Cal Raleigh earning recognition in MLB Network's player countdowns.
The acquisition of Dane Dunning on a minor league contract represents a shrewd move for the Seattle Mariners, adding depth, experience, and flexibility to their pitching staff. His varied career trajectory and past successes, particularly his role in a World Series-winning team, suggest he could be a significant contributor. With spring training offering immediate opportunities, Dunning's integration into the Mariners' system will be a key storyline as the team prepares for the upcoming season, aiming to solidify its roster with versatile and proven talent.