The NFL fined the San Diego Chargers $20-thousand on Wednesday for failing to immediately give up a towel that had a grip-enhancing substance on it.  The incident in question occurred in a game against the Broncos on October 15th.  The NFL released a statement saying the Chargers did not violate any NFL competitive rules, but was instituting the fine due to the initial lack of cooperation from the team.  The NFL went on to say that the "use of towels or other products that contain any type of adhesive substance is now prohibited."