Agencies | Brands | Campaigns | TV ESPN Analyst John Clayton Appears with Ponytail, Slayer Shirt for ‘SportsCenter’ By Bob Marshall on Sep. 6, 2012 - 2:30 PM Though one of the most consistently hilarious campaigns in the history of television advertising, it’s been a while since we’ve seen a “This is SportsCenter” spot really knock it out of the park. That is, u ...