The White Sox designated Olt for assignment Sunday to clear room on the 40-man roster for the newly-signed Austin Jackson, WGN TV reports.

The White Sox's third base depth improved significantly in the offseason with the signing of Todd Frazier, so Olt was a longshot to make the 25-man roster. Olt has slugged a not-so-hot .330 in his 400 career major league plate appearances and the power numbers he flashed in 2012 have become a distant memory.