Cowboys release Kyle Kosier

The Cowboys made it official Monday: Kyle Kosier will be released.

The Cowboys decided to part ways with the veteran guard after signing free agents Mackenzy Bernadeau and Nate Livings last week to contracts totaling about $30 million.

Kosier started 80 straight games in which he was active since joining the Cowboys as a free agent in 2006. He helped in the development of Doug Free at left tackle in 2010 while playing left guard and Tyron Smith at right tackle in 2011 while playing right guard.

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