Jackson aggravated his abdominal injury during Sunday's game against the Chicago Bears. He initially suffered a Grade 2 abdominal strain in Week 2 against the Atlanta Falcons, but declined to undergo surgery.
The speedy wideout returned Sunday after missing six games, but only lasted one series before being sidelined again. He caught one pass for five yards before exiting the game after only three snaps.
Tests revealed that Jackson now has a full tear, according to ESPN. The two-time Pro Bowl selection is expected to miss at least six weeks following the procedure, putting his 2019 season in jeopardy.
The Eagles reacquired Jackson in an off-season trade with the Tampa Bay Buccaneers this year. He has been limited to three games this season, recording nine receptions for 159 yards and two touchdowns.