Jackson signed with the Cowboys' practice squad Tuesday, Todd Archer of ESPN.com reports.
Jackson spent the preseason with the Cowboys before ultimately being released during final roster cut downs. The Packers scooped him up, and Jackson appeared in two games for Green Bay, though he failed to register an offensive statistic.
Jackson was waived by the Packers on Saturday.
Jackson played two games for the Packers but did not record an offensive statistic. Tyler Lancaster will take Jackson's spot on Green Bay's 53-man roster.
Jackson, who the Cowboys took 216th overall in the 2016 NFL Draft, gives the Packers some needed backfield depth behind Jamaal Williams and Ty Montgomery, with Aaron Jones set to miss two games out of the gate, as he serves a suspension.
Jackson carried the ball four times for eight yards while catching four of his six targets for 28 yards in Sunday's preseason game against the Cardinals.
He doesn't appear to be any threat to Rod Smith or Bo Scarbrough for the No. 2 RB job behind Ezekiel Elliott, but Jackson may have shown enough as a passing-down option this preseason -- both with his receiving and blocking -- to still be in the running for a roster spot.
Jackson (knee) was seen going through agility drills in late June, per his official Instagram account.
Jackson spent the entirety of last season on the Browns' injured reserve list after clearing waivers. He was waived by the team in May of 2018 and was signed by the Cowboys a few weeks later. In the drills, Jackson showed no signs of limitation with his previously-injured knee and should be set to go for training camp.
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