From the Washington Football team website....
7. Conduct
You are responsible for, and assume all liability associated with, any material you make available or transmit through the Service, whether through chat rooms, messages boards or other forums, including liability for claims of infringement, libel and slander. You may not post, transmit through or otherwise make available on or through the Service (i) any material that violates or infringes in any way upon the rights of others, that is unlawful, defamatory, obscene, abusive, profane, vulgar, sexually explicit, racist, threatening, hateful or otherwise objectionable or that encourages conduct that would constitute a criminal offense, give rise to civil liability or otherwise violate any law, (ii) without the express written consent of the owner thereof, any copyrighted material, or (iii) without the express prior written consent of the REDSKINS any advertising or any solicitation with respect to products or services (unless posted in an area specifically designated for that purpose). Although the REDSKINS do not and cannot review every message posted on or transmitted through the Service, the REDSKINS shall be under no obligation to permit any material posted or transmitted to remain on the Service, and may remove from, or refuse to display on the Service any material that the REDSKINS, in the exercise of their sole discretion, believe violates this Agreement.
http://www.redskins.com/contact/terms.jsp