ACL injuries seem to be ten a penny within the GAA these days but it's even worse in American football. Obviously with hard tackles flying in one would expect this to be a pretty common problem.
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However one would not expect to tear your ACL while celebrating a touchdown. Kentucky's wide receiver Alex Montgomery somehow managed such a feat.
http://www.youtube.com/watch?feature=player_embedded&v=IGqd4-LYFBM
hat-tip: larrybrownsports.com
