Hernandez suffered the ankle injury in Week 2, which kept him out until Oct. 14. He played in two games before suffering a setback last week, according to ESPN senior NFL writer John Clayton. He did not travel with the team to London last weekend.
Also not spotted were running back Brandon Bolden (knee), who has missed the last two games, as well as cornerback Kyle Arrington, who left Sunday's game with a head injury. Arrington was seen in the locker room earlier Thursday.
After missing three weeks with a foot injury, linebacker Tracy White was back on the practice field Thursday, but did not have a helmet or pads. The rest of the team was in full pads for the first time at practice since Sept. 27.
Receiver Wes Welker (ankle) and cornerback Marquice Cole (hamstring) both practiced after leaving Sunday's game with injuries. Linebacker Brandon Spikes, who also did not finish Sunday's game, spent most of the media access portion of Thursday's practice on a stationary bike before receiving extra stretching from trainers, likely on his lower back or thigh.
The Patriots do not have to release an injury report during their bye week.
Meanwhile, offensive lineman Markus Zusevics practiced for the first time since being signed as an undrafted free agent following April's draft. Zusevics tore his pectoral at the scouting combine in February, and is on the Reserve/Non-Football Injury list. He will have three weeks to practice before the team can activate him to the 53-man roster, keep him on the NFI list for the remainder of the season, or release him.