While the Joeckel move was expected, Lowery's name was a bit of a surprise.
Joeckel, the No. 2 overall selection in last April's draft, fractured his right ankle during Sunday's loss at St. Louis. Jaguars coach Gus Bradley said the 6-foot-6, 306-pound Joeckel will undergo surgery sometime in the near future.
Lowery, acquired in a trade with the New York Jets in 2011, suffered a concussion on the second defensive snap against Seattle on Sept. 22 and has yet to be cleared to return. He had started the first two games of the season while his rookie backup, Josh Evans, had played just four snaps.
Evans, the Jaguars' sixth-round selection, has played every defensive snap since Lowery's injury alongside another rookie, second-round pick John Cyprien. Evans has played well enough that it wouldn't be a surprise to see the Jaguars waive Lowery once he has passed the concussion baseline tests and is cleared to return.
NFL rules allow teams to waive a player off IR once he has been declared healthy. It's anticipated that Lowery could be cleared in a week or two.
The team also placed tight end Allen Reisner (sprained MCL) on injured reserve designated to return, meaning he can practice with the team after six weeks and return to the active roster after eight weeks.
Also on Tuesday, the Jaguars were awarded offensive tackle Sam Young off waivers from Buffalo. He was a sixth-round draft pick in 2010 and has played in 22 games (four starts) with Dallas and Buffalo.