In what was one of the more boneheaded penalties we have seen a player commit in a game, Dallas Cowboys linebacker DeMarvion Overshown cost his team 15 yards in the fourth quarter of the victory over the Indianapolis Colts on Sunday.

After the Cowboys made a huge stop by forcing and recovering a fumble against the Colts, Overshown ran out on the field to celebrate with his teammates.

The problem was that Overshown was not in uniform because he was inactive due to a hamstring injury he suffered at practice during the week.

While that part wasn't funny, the way the official announced the penalty was. The ref gave a full description of not only what Overshown did, but what he was wearing, also.

"After the play, unsportsmanlike conduct by Dallas," the official said. "An ununiformed player with blue sweats and a stocking cap came onto the field to celebrate. That's a 15-yard penalty."

Here's the video evidence of Overshown running onto the field.…