If you tuned into the Chicago Bears‘ matchup against the San Francisco 49ers game, you saw some less-than-ideal field conditions.

Heavy rain led to a soggy field that made playing a football game a challenge.

At one point, the Bears lined up for a field goal and the holder used a towel to try to dry a spot for the kick.

Because he used a towel, Chicago was called up an unsportsmanlike conduct penalty.

Apparently, there’s a rule in the NFL rule book that says players can only use their hands or feet to clear snow. It appears that’s the rule that the referees used to determine that a penalty had been committed.

That’s definitely the first time I’ve ever seen that happen in an NFL game.

Featured image via Mike Dinovo-USA TODAY Sports