MLB Trade Deadline 2025: Mariners Secure Josh Naylor in Major First Move
The Seattle Mariners make a significant move by acquiring Josh Naylor from the Arizona Diamondbacks, setting the stage for an exciting MLB trade deadline.

The MLB trade season is officially underway, and the Seattle Mariners have made the first major move by acquiring Josh Naylor from the Arizona Diamondbacks. This trade marks the beginning of what promises to be a flurry of activity leading up to the July 31 deadline.
Trade Details
- Mariners Receive: 1B Josh Naylor
- Diamondbacks Receive: LHP Brandyn Garcia, RHP Ashton Izzi
Mariners Grade: B+
Josh Naylor brings a well-rounded hitting ability to the Mariners, boasting a .292/.360/.447 slash line with 11 home runs this season. His exceptional contact rate and low strikeout percentage make him a valuable addition to Seattle's lineup, which has struggled with strikeouts.
Naylor's performance against right-handed pitchers is particularly noteworthy, with a .310/.390/.493 line and nine of his 11 home runs coming against righties. This upgrade over Luke Raley provides the Mariners with a more consistent offensive threat.
Diamondbacks Grade: B
In return, the Diamondbacks receive two promising pitchers. Brandyn Garcia, a former 11th-round pick, has shown potential as a reliever with a mid-90s sinker and effective sweeper. Ashton Izzi, a 21-year-old righty, offers developmental upside despite struggles in high-A ball.
Future Implications
This trade could be the precursor to more deals involving the Diamondbacks, who may look to move other players like Eugenio Suarez, Merrill Kelly, and Zac Gallen. The Mariners, meanwhile, might still seek an upgrade at third base, keeping the trade market active.
For the latest updates and analysis, stay tuned as the MLB trade deadline approaches.