(Photo by Sam Greenwood/Getty Images)Referee Ron Cherry took a nasty shot to the head and was knocked out by a USC player.Ron Cherry is a well-known referee in football. He’s well-known for one play call individual.But we’ll get to that later.First things first. Cherry took a helmet-to-head hit and went limp right away. With so much concern surrounding helmet-to-helmet hits, its easy to see why Cherry went down. Although he wasn’t hit too hard, the contact was more than enough to knock him down.Ron Cherry just got knocked out in the USC-Notre Dame game. @RedditCFB pic.twitter.com/7XMUkSm2xl— Henry Skutt (@henryskutt) November 26, 2016Cherry did get up and walk off the field under his own power, but looked clearly dazed.This is the same ref who gave us one of the best moments from a referee in football history.Ron Cherry is a legend. Not sure “giving him the business” is in the refereeing dictionary, but that won’t stop this guy.We wish him a very speedy recovery and wish him well.