While chasing a wind-blown popup in Friday’s game, both Jackson and Starlin Castro dove for a ball in shallow left-center field with Castro landing on Jackson’s neck and right shoulder area. Jackson stayed in the game but felt the effects Saturday.
“He felt like he got hit by a truck more than anything, more of a whiplash type of effect with that collision in center field,” manager Dale Sveum said.
Jackson has had a rough start to his major league career. He had two hits in his debut game Sunday at Los Angeles, but starting with his last at-bat in that game, he went on to strike out in eight consecutive at-bats.
Jackson still has just two hits in 17 at-bats (.118) with 11 strikeouts.