If Kansas City Chiefs fans learned anything from their 2011 season, it is the fact that injuries can take a toll on a team. Just look at the AFC West standings.
The Denver Broncos, Oakland Raiders and San Diego Chargers all finished with an 8-8 record to end the season. The Chiefs finished in last place, but they wrapped up their season with a 7-9 record, only one game behind first place.
Imagine if the Chiefs had quarterback Matt Cassel, running back Jamaal Charles, tight end Tony Moeaki and safety Eric Berry. Three of the four players listed played in the Pro Bowl prior to suffering their injuries.
If the Chiefs had a 2011 season in which their key players were healthy, like they did in 2010, they could have won more than eight games.
But things did not go their way. Now, they have to make sure their players stay healthy in 2012 to give themselves the best chance at winning the AFC West and returning to the playoffs.
Here are the 13 players who must stay healthy for the Chiefs this season.