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The Dallas Cowboys are in serious trouble heading into 2013.

No, not because they missed the playoffs for the third consecutive season—it is because they are in salary cap hell.

The Cowboys will have to figure out a way to get under the salary cap before the free-agency period even begins on March 12, 2013. The Cowboys are already about $25 million over the estimated $121 million salary cap.

With the assistance of player contracts found at spotrac.com, the following is the Cowboys' dire salary cap situation.