Ellefson (groin) was activated off of the injured reserve Wednesday.
Ellefson is expected to make his return to action after being out since Week 4. In the four games he played, the 26-year old tight end caught all three of his targets for 26 yards while serving mainly as a blocking specialist. Ellefson will look to help open holes for Dalvin Cook and the run game in his return versus a stout Jets run defense.