John Harbaugh didn't sound hoarse, didn't appear faint and he didn't cough.
Along with several other players who left the field and returned during the Ravens' nail-biting Week 15 home win against Philadelphia, the head coach appeared none the worse for wear.
Harbaugh and his team will need to be at their best for the regular-season-closing two-game road division stretch at Pittsburgh Christmas Day and Cincinnati Jan. 1.
Winning both games will give the Ravens their fifth AFC North title since the division was formed in 2002 but their first since 2012.