There are plenty of reasons for NFL players to stay away from social media -- they might say something stupid that reflects poorly on their employers or the league, they could end up giving away game-planning secrets, or in the case of Giants running back Andre Brown, it could be something as simple as tweeting during a game.
Seems innocuous enough, especially since Brown was just letting family, friends and followers know that he was OK after suffering a head injury in Sunday's get-together with the Browns.
But here's the problem: It's against NFL rules.
According to the league, "Players, coaches and football operations personnel can use Twitter, Facebook and other social media up to 90 minutes before kickoff, and after the game following traditional media interviews. During games, no updates will be permitted by the individual himself or anyone representing him on his personal Twitter, Facebook or any other social media account."
Brown's tweet is timestamped 2:12 p.m. ET, which means that, unless he has a time machine, he'll likely be hearing from the league about his in-game tweeting habits.
(For a point of reference, Chad Ochocinco was fined $25,000 in 2010 for violating the NFL's Twitter policy.)
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