The Orioles have acquired Alex Liddi from the Mariners, according to Larry Stone of the Seattle Times (via Twitter). In the swap, the M’s also sent their No. 3 international slot to Orioles and received the O’s international signing slot No. 2. To make room for Liddi on the 40-man roster, Baltimore announced that they have designated Russ Canzler for assignment.

Baltimore’s No. 2 international slot is $351,200 and Seattle’s No. 3 slot is $277,500 and the swap adds an extra $73,700 to Seattle’s pool, according to Ben Badler of Baseball America (on Twitter).

Seattle designated Liddi for assignment towards the end of June in order to promote shortstop Brad Miller. The infielder posted a .263/.322/.454 slash line over his 262 plate appearances in Triple-A this year but wasn’t as strong in 188 major league plate appearances.

Canzler, 27, has 29 big league games to his credit between 2011 and 2012. In 86 games for Triple-A Norfolk this season, the infielder/outfielder has slashed .276/.369/.430.