Washington Redskins fans around the world held their collective breathes as rookie quarterback Robert Griffin the 3rd had to leave the game against the Atlanta Falcons in the third quarter.
Griffin was trying to scramble for a touchdown but was tackled by Falcons linebacker Sean Weatherspoon which caught him in the helmet:
RG3 went to the locker room and his condition is unknown at this time...
(Courtesy of The Big Lead)
Source:
http://www.outsidetheboxscoreblog.com/2012/10/robert-griffin-3rd-gets-knocked-out-by.html