Cowboys bench FB Chris Gronkowski

ARLINGTON, Texas -- Rookie fullback Chris Gronkowski won’t have a costly blown assignment this week.

Gronkowski is inactive the week after his mental mistake allowed Giants linebacker Michael Boley to come clean on a blitz and deliver the hit that broke Tony Romo’s left collarbone.

It’s the second time this season that Gronkowski has been inactive. He sat out the Oct. 10 loss to the Tennessee Titans due to a strained groin.

Gronkowski is the only fullback on the roster, but third tight end Scott Chandler handled those duties well against the Titans.

The inactive lists:

COWBOYS: QB Tony Romo, FB Chris Gronkowski, LB Jason Williams, OG Kyle Kosier, OG Montrae Holland, OT Jermey Parnell, WR Kevin Ogletree, DE Jason Hatcher.

JAGUARS: QB Todd Bouman, RB Rashad Jennings, FB Brock Bolen, LB Eric Alexander, OT Erik Pears, DL C.J. Mosley, DL Jeremy Mincey, DT Landon Cohen.