The NFL is sticking it to the San Diego Chargers.
The league announced Wednesday that it has fined the Chargers $20,000 for trying to hide towels with a concealed "sticky" substance to enhance grip during an Oct. 15 game against Denver.
"The NFL has determined that the club did not violate a competitive rule by use of the towels," the league said in a statement. "However, NFL game officials are charged with protecting the integrity and competitive fairness of the games and club staff members, like players and coaches, have a clear obligation to cooperate in this effort and comply with the direction of game officials. As a result of the failure of club staff to follow the directive of a game official to immediately surrender the towels when directed to do so, and to attempt to conceal the towels, the Chargers have been fined $20,000."
The NFL went on to say such towels are no longer legal.
"In order to ensure that products that may have a possible competitive effect are given appropriate review and testing, our office -- after consultation with the Competition Committee -- has advised all clubs that the use of towels or other products that contain any type of adhesive substance is now prohibited on game days until further notice."