Mike Preston's matchups: Ravens vs. Chiefs

Chiefs WRs Dwayne Bowe and Chris Chambers vs. Ravens CBs Josh Wilson and Chris Carr: The Chiefs are a running team, but they have two big, physical receivers in Bowe and Chambers. Wilson and Carr don't have great size, but have outstanding speed, which will be tested by Chambers and Bowe. If given time to throw, Chambers and Bowe could have big games against the Ravens. Edge: Chiefs.

Chiefs Gs Ryan Lilja and Brian Waters vs. Ravens DTs Kelly Gregg and Haloti Ngata: Kansas City likes to run the ball and Lilja and Waters are keys. They are good at the point of attack, but also versatile and fast enough to get outside on traps and tosses. Gregg or Ngata will be double-teammed almost every play, but the other has to hold ground and make the play in the middle. Lilja and Waters don't have the muscle to move Ngata and Gregg consistently. Edge: Ravens.

Chiefs RBs Jamaal Charles and Thomas Jones vs. Ravens LBs Jameel McClain and Ray Lewis: Kansas City has the No. 1 running game in the league, and both Charles and Jones have speed and quick change of direction. The Ravens have to be careful not to overpursue and maintain lane integrity. Lewis and McClain are two of the major keys. Both players are quick, and Lewis played well last week plugging holes. McClain is like a jack rabbit, but sometimes becomes undisciplined. This is a game where McClain has to stay under control at all times and square up when tackling. Edge: Even.

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