Mike Tomlin can still remember his first concussion — or at least what he thought was his first concussion. They weren’t diagnosed nearly as often in 1987, when he was 15.
“I was blocking as a wide receiver on a perimeter run play and confronted a big man and bit off probably more than I could chew,” the Steelers coach told a group of high school coaches and administrators Thursday afternoon at Heinz Field. “The big man was running to the ball, and quite frankly, I probably don’t remember hitting the ground. And my buddy comes over and helps me up and I say, ‘How long was I down there?