Should Ravens' in-game Mannequin Challenge have been penalized?

Members of the Baltimore Ravens' special teams unit performed a "Mannequin Challenge" during Thursday's win over the Cleveland Browns.

While on the surface this looks like nothing more than players having some fun and participating in the latest social media trend on the largest stage possible, the NFL might not see it the same way.

League rules forbid "two or more players engaging in prolonged, excessive, premeditated, or choreographed celebrations or demonstrations." Though the Ravens might argue there's no choreography when no one is moving, it's hard to watch the video above and not see a pre-planned group demonstration.

The play wasn't penalized - perhaps because game officials had no idea what they were watching - but it's possible the Ravens players who participated will be fined.