Ka'aihue was released by Wasington, the Syracuse.com reports. Ka'aihue was hitting .193 with four homers this season at Triple-A.

Ka'aihue signed a one-year deal, which includes a spring training invite, with the Nationals on Sunday, William Ladson of MLB.com reports. Ka'aihue, who spent the last two seasons in Japan, last played in the MLB in 2012, when he appeared in 39 games for the A's. He hit .257/.355/.417 with 40 RBI and 11 home runs in 288 at-bats last season, but he holds just a .221 career major league batting average.

Japan's Hiroshima Carp have picked up their option on Kila Ka'aihue, according to MLB Daily Dish's Chris Cotillo. Ka'aihue was cut loose by the Diamondbacks this past June and landed in Japan. The 29-year-old may resurface with an MLB team before it's all said and done.

Diamondbacks released 1B Kila Ka'aihue. The release was requested by Ka'aihue, who had an out clause in his contract. He batted .313/.426/.620 with 16 homers and 50 RBI at Triple-A Reno before asking to be cut loose. He won't have trouble catching on elsewhere.

Diamondbacks signed 1B Kila Ka'aihue to a minor league contract. It's not clear whether he'll receive a spring training invitation. Ka'aihue has shown plenty of promise in the minors but has batted just .221/.305/.382 over 465 major league plate appearances.

Kila Ka'aihue has elected free agency. The 28-year-old slugger hit .234/.295/.398 with four homers and 14 RBI in 39 games for the Athletics this season. His upside and power potential should generate plenty of interest and a spring training invitation.

Kila Ka'aihue went 2-for-4 with a two-run homer in Monday's 12-1 rout of the Rangers. Ka'aihue also reached base on an infield single. The effort boosts his batting average to .234 and his RBI total to 14.