The first Diamondbacks trade domino has fallen, as first baseman Josh Naylor is heading to the Seattle Mariners.

The Seattle Mariners traded for Arizona Diamondbacks first baseman Josh Naylor Thursday night, effectively kicking off the trade deadline rush. The Diamondbacks received left-handed pitcher Brandyn Garcia and right-handed pitcher Ashton Izzi in exchange.

The Mariners bolstered their efforts to return to the playoffs by acquiring slugger Josh Naylor from the Diamondbacks on Thursday night.