That reminds me of this:
During NBC's pregame show on Oct. 20, analyst Jim Kelly questioned Harbaugh's propensity for injury, calling him a "baby" who "overdramatized" his injuries.
Harbaugh heard about it, and what do you know—Kelly and NBC were in San Diego for Indianapolis's next game. The Saturday before the game, Kelly was at the Colts' hotel for a production meeting. Harbaugh reportedly poked his head into the room and told Kelly he wanted to talk. The two went into another room and exchanged punches, in a scuffle that lasted about 30 seconds, according to the Daily News.
Kelly was fine. Harbaugh broke a bone, and was placed on the non-football injury list, meaning he'd have to forfeit his salary ($147,000 a week) until he was healthy. He returned on Nov. 23.
"I consider this something personal between Jim Kelly and I," Harbaugh told the AP, wearing a protective wrap on his hand. "We settled things."
Did he regret anything?
"I regret that I have a crack in one of my bones in my hand."
Harbaugh would later tell ESPN News that "I felt I had to do something since my toughness was being questioned."