Matt Cassel

Matt Cassel Credit: Getty Images

The Chiefs failed to defend their AFC West title last year in large part because of injuries to four key players: quarterback Matt Cassel (hand), running back Jamaal Charles (knee), tight end Tony Moeaki (knee) and safety Eric Berry (knee). 

Good news for Kansas City: All are back on the field, and are operating at full speed. Four big reasons we see the Chiefs as contenders once again in an ultra-competitive division.

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