The Athletics have traded first baseman Yonder Alonso to the Mariners for outfielder Boog Powell, according to a club announcement. Seattle claimed Alonso off revocable trade waivers and the sides worked out the deal.
Alonso, an All-Star this season, drew interest from some clubs before the non-waiver trade deadline last Monday but ultimately stayed put while the A’s completed larger deals involving relievers Sean Doolittle and Ryan Madson and starter Sonny Gray. The Yankees were the most active Alonso suitor throughout the month of July but ultimately ended up acquiring Todd Frazier to fill their infield need.
Alonso will provide a left-handed complement to Danny Valencia at first base for Seattle for the rest of the year before hitting free agency this fall. He earned an All-Star spot by hitting .275 with 20 homers in the first half of the year but has struggled to a .230 average with only two homers in the season’s second half.
Seattle joins David Phelps, Erasmo Ramirez and Marco Gonzales as newcomers to the Mariners, who are are only 1.5 games out of a wild card spot in the American League.
Powell, 24, was originally drafted by the Athletics in the 20th round of the 2012 draft before being traded to the Rays in the Ben Zobrist trade before the 2015 season. He was dealt again after the year, being sent from Tampa Bay to Seattle in a deal headlined by Logan Morrison, Nathan Karns and Brad Miller.
Powell broke into the majors this year, hitting .194/.310/.194 in 23 games. He has done well at Triple-A, hitting .340/.416/.490 with six homers and 11 steals on the year.