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Shadow Report: Key WR/CB battles for Week 4

Can Detroit's Darius Slay actually put a cap on the fantasy upside of Kansas City's Sammy Watkins in Week 4? Jay Biggerstaff-USA TODAY Sports

By using our play-by-play data, we're now able to identify where each wide receiver and cornerback lines up on each play. By tracking matchups between the two positions, including potential shadow situations, we can offer the best projections, rankings and fantasy advice each week.

Down below are the receivers with the best and worst Week 4 matchups, as well as the corresponding fantasy impact.

To view the primary defenders the top three wide receivers for each team will see this weekend, be sure to check out