Manager Jim Leyland said the results of an MRI Jackson had in Detroit show no additional signs of injury other than what the medical staff had believed to be an abdominal strain.
"Nothing different from what the medical people predicted, which was a sigh of relief," Leyland said.
Jackson was placed on the 15-day disabled list Thursday, retroactive to May 17. He is back in Detroit rehabbing the injury and could rejoin the Tigers as early as Monday when Detroit heads to Boston for a series with the Red Sox.
"He is probably going to come to Boston to do some activity, not to play. We might be shooting for next weekend against the Yankees. We don't know if there will be something before that if he was able to get a couple of at-bats somewhere, we don't know the answer to that," Leyland said.
Jackson is off to a hot start this season and his absence has hurt the Tigers. He is hitting .331 with five home runs, 17 RBIs and 10 doubles. Jackson also leads the team with six stolen bases.
Detroit did get the services of one of its regulars back, when Ryan Raburn was reinstated from the bereavement list. Raburn missed the recent series with Cleveland to return home to Florida following the death of his grandmother.
Raburn was back in the starting lineup, batting ninth and playing second base in Friday's series opener against Minnesota at Target Field.