The move comes a week before the July 31 Major League Baseball trade deadline and likely signals that the Diamondbacks will be strong sellers leading up to the date.

Naylor is looking forward to the opportunity to bat cleanup in his first game with Seattle against the Los Angeles Angels on Friday night.

The Seattle Mariners acquired first baseman Josh Naylor from the Arizona Diamondbacks on Thursday, a person familiar with the deal told The Associated Press, as the franchise tries to beef up it’s ro...