SANTA CLARA — He stood up, stepped away from the 49ers’ bench, and walked off the field and into the tunnel of Levi’s Stadium.
Then he walked into the 49ers locker room, changed out of his uniform, and exited the facility.
It was the fourth quarter of the Niners’ Thursday Night Football game against the Rams, and San Francisco linebacker De’Vondre Campbell wasn’t injured or ejected from the contest.
No, he simply quit.
After sitting on the bench in the pouring rain...