The Oakland Raiders are playing it safe this week with Darren McFadden. The oft-injured running back sat out Friday night's preseason matchup against the Chicago Bears. McFadden suffered a minor shoulder injury during last week's game against the New Orleans Saints. He did practice all week, according to the San Francisco Chronicle, but the Raiders elected not to chance fate. The dynamic running back never has played in more than 13 games in a season, including missing a combined 13 games the past two years. Source: NFL.com