J.C. Jackson had surgery on his ankle Tuesday.
Jackson is expected to come back in about two weeks.
Jackson underwent a procedure to correct something that he was born with, according to a source.
The first game of the season is against the Las Vegas Raiders, followed by a trip to Kansas City for a Thursday Night Football game.
Jackson signed a five-year contract with the Bolts in March.
Jackson is expected to play a key role in a unit that traded over the winter for Mack and returns Bosa and James, two of the league's best defensive players.
The New York Hospital of Special Surgery is where Jackson's procedure took place.
Jackson played four seasons in the National Football League for the New England Pats.
Jackson was selected to the Pro Bowl for the first time last season after intercepting eight passes.