The league office has told the Dallas Cowboys that a pair of tripping penalties shouldn't have been called during their loss to the New England Patriots on Sunday afternoon.

Travis Frederick was flagged for tripping on third-and-1, negating a first down as the Cowboys were driving for a potential go-ahead score late in the fourth quarter.

Also, in the first quarter, Tyron Smith was penalized for tripping, putting the Cowboys in a difficult second-and-23 situation.

Jason Garrett had no comment on the calls during his Monday news conference.