Saints' Terron Armstead out Sunday vs. Eagles

New Orleans Saints left tackle Terron Armstead has been ruled out for Sunday's matchup against the Philadelphia Eagles.

Armstead suffered a knee injury in Week 4, but was able to finish the game.

The Saints will likely turn to their first-round pick from this year, Andrus Peat, to start at left tackle in Amrstead's absence.

Punter Thomas Morstead has also been ruled out for the game with a quad injury.

The Saints signed Brandon Fields during the week to cover for Morstead, and he will start in his place.