Matthews (groin) has been downgraded to out for the rest of Monday's game against the Saints, Tori McElhaney of the Falcons' official site reports.
Analysis:Matthews sustained a groin injury toward the end of the first quarter, and after being evaluated by medical staff, it has been determined that the veteran offensive lineman will not return to Monday night's game. Michael Jerrell will remain at left tackle the rest of the way in Matthews' absence.
