The Kansas City Chiefs' offense took a substantial hit Wednesday with news that tight end Kevin Boss was placed on injured reserve because of concussion issues. The Kansas City Star reported that doctors told Boss he would not be cleared for the rest of the season. Boss suffered the concussion following a 29-yard reception in a Week 2 loss to the Buffalo Bills. Harrison: Week 5 Power Rankings What is the league pecking order with a quarter of the 2012 season
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