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1. Sam Shields vs. Mike Wallace – Speed vs. speed. Dom Capers says denying big plays is a big part of playing winning defense. Wallace is the Dolphins' big-play receiver, and Shields is coming off consecutively impressive efforts against Calvin Johnson, Brandon Marshall and Cordarrelle Patterson.
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2. Clay Matthews vs. Lamar Miller – Matthews is the Packers' best run defender and tackler, and Miller is an elusive cutback runner averaging 5.7 yards per carry.
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3. Julius Peppers vs. Branden Albert – This will be fun to watch. It's the classic matchup of a premier pass rusher vs. a premier pass blocker.
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4. Aaron Rodgers vs. Ryan Tannehill – Yeah, I know, they don't play against each other, but Coach Capers is back on his passer-rating-differential plan, and it has generally proven to be indicative of the outcome of games. Rodgers is on a roll. Tannehill has been up and down.
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5. Bryan Bulaga vs. Cameron Wake – Wake is the Dolphins defense's playmaker. He's the guy who causes disruption. Bulaga might be playing the best football of his career. This is also a good one to watch.
ADDITIONAL COVERAGE - OCT. 10
Packers.com's Vic Ketchman identifies the five key matchups to look for in Sunday's Packers-Dolphins game.
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
Speed vs. speed. Dom Capers says denying big plays is a big part of playing winning defense. Wallace is the Dolphins' big-play receiver, and Shields is coming off consecutively impressive efforts against Calvin Johnson, Brandon Marshall and Cordarrelle Patterson.

Matthews is the Packers' best run defender and tackler, and Miller is an elusive cutback runner averaging 5.7 yards per carry.

This will be fun to watch. It's the classic matchup of a premier pass rusher vs. a premier pass blocker.

Yeah, I know, they don't play against each other, but Coach Capers is back on his passer-rating-differential plan, and it has generally proven to be indicative of the outcome of games. Rodgers is on a roll. Tannehill has been up and down.

Wake is the Dolphins defense's playmaker. He's the guy who causes disruption. Bulaga might be playing the best football of his career. This is also a good one to watch.