FLORHAM PARK, N.J. -- Jets center Nick Mangold and defensive tackle Sione Po'uha did not practice Wednesday.

While Mangold's day off was likely a maintenance day, as he played Sunday, Po'uha's absence is of concern. He has missed the last two games with his back injury and there doesn't seen to be a resolution at the moment.

Running back Bilal Powell (shoulder) and Joe McKnight (ankle) both sat out as well. Powell will not play Sunday against the Patriots and it doesn't look good for McKnight. That leaves the Jets with two healthy running backs.

Here's today's full report:

DID NOT PRACTICE
C Nick Mangold (ankle)
DT Sione Po'uha (low back)
DT Kenrick Ellis (knee)
WR Clyde Gates (shoulder)
S Eric Smith (knee)
RB Bilal Powell (shoulder)
RB Joe McKnight (ankle)

LIMITED PRACTICE
LB Bart Scott (toe)
TE Dustin Keller (hamstring)
WR Stephen Hill (hamstring)
LB Bryan Thomas (hamstring)

FULL PRACTICE
QB Mark Sanchez (low back)
LB Calvin Pace (shoulder)
G Brandon Moore (hip)
G Matt Slauson (knee)
S LaRon Landry (heel)
WR Jeremy Kerley (finger)

PATRIOTS

DID NOT PRACTICE
RB Brandon Bolden (knee)
LB Tracy White (foot)

LIMITED PRACTICE
S Patrick Chung (shoulder)
WR Julian Edelman (hand)
S Steve Gregory (hip)
TE Rob Gronkowski (hip)
TE Aaron Hernandez (ankle)
LB Dont'a Hightower (hamstring)
G Logan Mankins (calf/hip)
G Nick McDonald (shoulder)
CB Sterling Moore (knee)
T Sebastian Vollmer (Back/knee)
WR Wes Welker (ankle)

FULL PRACTICE
DT Kyle Love (knee)