Four players were sidelined at practice today for the Ravens.
The list includes offensive tackle Eugene Monroe, who underwent arthroscopic knee surgery last week and is expected to miss roughly a month.
Jernigan has missed the past two games after getting hurt against the Pittsburgh Steelers.
Former Ravens defensive tackle Arthur Jones and rookie offensive guard Jack Mewhort didn't practice due to ankle injuries.
Linebacker Jerrell Freeman (hamstring) was limited.
Safety Colt Henderson (groin), linebacker Andy Studebaker (hamstring) and offensive guard Hugh Thornton (ankle) participated fully.