On Thursday, the Seattle Mariners acquired All-Star first baseman Josh Naylor from the Arizona Diamondbacks for pitching prospects Ashton Izzi and Brandyn Garci

Naylor is slashing .292/.360/.447 this season, with 11 home runs, 59 RBIs and 11 stolen bases. The Diamondbacks had acquired Naylor in an offseason trade with the Guardians, with the slugger coming off a 31-homer, 108-RBI campaign in Cleveland. Naylor, 28, is a free agent at the end of the season, making him a rental for Seattle.

Arizona Diamondbacks' Josh Naylor, left, starts his swing on a catcher interference with St. Louis Cardinals catcher Pedro Pagés during the first inning of a baseball game Saturday, July 19, 2025, in Phoenix. Credit: AP/Ross D. Franklin

The Seattle Mariners enter play on Monday night at 53-46 on the season and just four games back in the American League West. Furthermore, they are tied for the