The Saints are set to sign Rader, Aaron Wilson of KPRC 2 Houston reports.
Rader played in 14 regular-season games with Tennessee last season, logging one catch (on three targets) for six yards over 140 offensive snaps. The tight end out of Youngstown State also logged 219 snaps on special teams. Rader will compete for a depth role with the Saints among a tight-end group that is headed by Juwan Johnson (foot), Taysom Hill and Foster Moreau. New Orleans also signed Mason Fairchild -- another tight end -- on Friday.