John Harbaugh is the Baltimore Ravens head coach nevermore ... with reports stating he's been fired after 18 seasons.
The news broke just minutes ago ... and even though there have been rumblings all season a change could come on the Baltimore sidelines, it's still pretty shocking.
Harbaugh racked up 180 regular-season wins during his time with the Ravens ... and went 13-11 in the postseason -- including a Super Bowl XLVII victory over his brother Jim's San Francisco 49ers in 2013.