C.J. Anderson had a huge game in the Broncos win over the Bills. While Peyton Manning was held without a touchdown, Anderson had 3. After one of his touchdowns, the refs decided to celebrate with a quick fistbump. Some people weren't happy with the celebratory gesture, but the NFL had no issue with it. FOX Sports' expert on officiating, Mike Pereira explained why it wasn't a big deal. No word on if either ref was starting C.J. on their fantasy team.