Jackson played in 21 games over the past two seasons, including all 12 games last season. He signed with Memphis in 2020 after de-committing from LSU.
It's common for players to reconsider transferring for various reasons. Last year, Tigers running back An'Darius Coffey entered the portal only to withdraw his name the following day.
MEMPHIS FOOTBALL'S OFFENSE: Memphis football offense position-by-position grades for 2021 season
MEMPHIS FOOTBALL'S DEFENSE: Memphis defense, special teams position-by-position grades for 2021 season
Jackson's return gives the Tigers more help on the defensive line. Memphis has seen three defensive linemen enter the portal since December and there's mostly young or unproven players behind starters Morris Joseph and Wardalis Ducksworth.
It'll be one of several tasks for new defensive coordinator Matt Barnes and defensive line coach Kyle Pope. Jackson will add depth but with three super seniors in Joseph, Ducksworth and Maurice White, the Tigers hope some of that youth grows up fast.
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This article originally appeared on Memphis Commercial Appeal: Memphis Tigers DL Cam'Ron Jackson withdraws from transfer portal