The Seattle Mariners are reportedly in the final stages of completing a trade to acquire versatile infielder and outfielder Brendan Donovan from the St. Louis Cardinals, according to sources familiar with the negotiations. The deal, though not yet official, would bring one of the National League’s rising talents to the American League West.
Donovan, who earned his first All-Star selection last season, has drawn attention across the league for his positional flexibility and consistent offensive contributions. Primarily utilized in the infield, Donovan has also shown the ability to play in the outfield, making him a valuable utility player. Details of the trade, including which players or prospects may be headed to St. Louis, have not yet been disclosed.
The 2025 season marked a breakout year for Donovan. In addition to his All-Star appearance, he provided steady production at the plate and exhibited strong defensive metrics across multiple positions. His approach at the plate includes good strike-zone discipline and the ability to make contact to all fields, making him a potential asset in the Mariners’ lineup.
For Seattle, this move would signal continued efforts to strengthen the roster following a competitive 2025 campaign. The Mariners have been active in the offseason market, looking to add depth and versatility as they aim to contend in a highly competitive division. Donovan’s arrival would bolster their infield options and provide additional support in both offensive and defensive phases of play.
St. Louis, meanwhile, appears to be reshaping parts of its roster following a season that fell short of expectations. Moving Donovan could indicate a willingness to retool with younger talent or address other areas of need.
Both clubs have not officially confirmed the trade, and it remains unclear when an announcement may be made. However, with spring training approaching, any potential move involving Donovan could have immediate implications for roster construction and team strategies heading into the 2026 season.
