Josh Naylor just set a Seattle Mariners stolen base record. Yeah, 250-pound first baseman Josh Naylor. In Naylor's first four games with the Mariners, he has stolen four bases. He didn't swipe one in his debut, then has gone 1-2-1 in the last three games.

The Seattle Mariners have acquired lefty-batting first baseman Josh Naylor from the Diamondbacks. Arizona gets left-hander Brandyn Garcia and right-hander Ashton Izzi back in the deal. The Diamondbacks announced the trade on Thursday evening.

Jerry Dipoto has a longstanding reputation for jump-starting the Trade Deadline market, and the Mariners’ president of baseball operations indeed sparked this year’s traction, with the first major domino falling to Seattle on Thursday night.