MLB trade deadline action officially kicked off when the Seattle Mariners acquired first baseman Josh Naylor from the Arizona Diamondbacks on Thursday.

Jerry DiPoto signaled that the Mariners intended to be buyers this summer, with a 1.5-game lead in the race for a Wild Card spot and one of the best and deepest rotations in baseball. The only thing that was missing was a little more offense — particularly at first and third base, where Donovan Solano and Ben Williamson weren't going to be enough.

The Mariners traded Izzi to the Diamondbacks on Thursday alongside Brandyn Garcia in exchange for Josh Naylor, Jeff Passan of ESPN.com reports. Izzi has spent all of 2025 with the Mariners' High-A affiliate,

Veteran outfielder Randal Grichuk hugged several of his teammates goodbye after being traded from the Arizona Diamondbacks to the Kansas City Royals in the middle of a game

The Diamondbacks continued to make deals Saturday, trading outfielder Randal Grichuk to the Royals, according to a baseball source. The club has not confirmed, and the return is not known at this time.