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The second episode of "Hard Knocks: Training Camp with the Buffalo Bills " has some intrigue. Running back James Cook decided not to practice last week as he seeks a new contract and the Bills had their first preseason game. Both topics could get airtime on Episode 2.

The second episode of Hard Knocks, featuring the Buffalo Bills, aired on Tuesday night, as fans were given another inside look at one of the NFL's top Super Bowl contenders.