NFL's top first-half performances

Andrew Luck had a terrific performance in Week 9 against the Miami Dolphins. Gregory Shamus/Getty Images

One of the beautiful things about ProFootballFocus.com is our ability to track individual matchups throughout a game. How many of a wide receiver's targets come against a certain cornerback? How often did a cornerback switch sides in order to cover a specific wide receiver? Against which offensive lineman did a defensive end create the most pressure, and conversely, which offensive lineman shut down an opposing pass-rusher?