The Dallas Cowboy's cornerback Morris Claiborne walked out of the team's walk-through practice and angrily left the club's Valley Ranch training facility Tuesday after being informed that Orlando Scandrick was replacing him in the starting lineup, multiple sources said.  On Sunday, Claiborne (pictured on the right) allowed five receptions for 108 yards including a 51-yard touchdown pass that allowed the St. Louis Rams to take a 21-0 second-quarter lead before the Cowboys rallied back for a 34-31 win.

Michael B. Thomas, Getty Images
Michael B. Thomas, Getty Images
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"Mo was just in situations in (Sunday's) game where he was isolated by himself and they made good throws and catches against him," head coach Jason Garrett said.  "His technique on each of those plays wasn't perfect and they had success for different reasons on each of those plays where he got beat, and he just needs to continue to learn and grow and develop as a player. "

Claiborne's demotion came a few hours after Jerry Jones said on his weekly radio show that the third-year cornerback had not been worth the sixth pick of the 2012 draft, which Dallas moved up to acquire.  "Is he what we had hoped for at this point when we drafted him with the sixth overall pick, giving up the [second-round] pick to go up to the sixth pick to get him?  No," Jones said on 105.3 The Fan.  "But he's going to be a good player."

Dallas currently sits at 2-1 on the year as they head into week four of the NFL season.  They take on Drew Brees and the New Orleans Saints in the prime time slot on Sunday.  Kickoff for that game is set for 7:30pm from AT&T Stadium in Arlington and can be seen on NBC.

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