The Orioles acquired the 25-year-old Liddi and a No. 3 international bonus slot from the Mariners earlier this season and sent their own No. 2 bonus slot to Seattle in exchange. After hitting .263/.322/.454 in 262 plate appearances with the Mariners' Triple-A affiliate, Liddi slumped to a .222/.269/.378 batting line with Baltimore's Triple-A affiliate in Norfolk.
In parts of parts of three seasons at Triple-A, Liddi is a .257/.320/.459 hitter with 56 homers in 1,420 plate appearances. A native of Italy, Liddi played for Team Italy in this year's World Baseball Classic, collecting four singles in 17 at-bats.