Originally written on It's Always Sunny in Detroit  |  Last updated 4/24/13

OAKLAND, CA - JANUARY 03: Head coach John Harbaugh of the Baltimore Ravens looks on against the Oakland Raiders during an NFL game at Oakland-Alameda County Coliseum on January 3, 2010 in Oakland, California. (Photo by Jed Jacobsohn/Getty Images)
YouTube Tough Mudders have become the water cooler rave for “stuff” that people are training for.  Marathons are no longer the coolest thing on the block, it’s all about the military-style obstacle course events now. Baltimore Ravens head coach John Harbaugh put his 50-year old body to the test recently at the Tough Mudder in Gerrardstown, West Virginia.  Known for his incredibly intense practices and workouts, Harbaugh didn’t back down from practicing what he preaches.  The Baltimore Sun reported that he participated in the competition with members of the Ravens front office. He sported a shirt that read ”Sack Lunch” on the front and “I will” on the back.  While John was grinding through the obstacle course, brother Jim Harbaugh spent the day whining about something, probably. The Post Game
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