Looking at the Championship 4 drivers for Sunday's Sprint Cup title race, it's easy to see there are a lot of story lines.
Jimmie Johnson is going for his seventh title, which would put him alongside the greatest to race in this sport — Richard Petty and Dale Earnhardt. Kyle Busch is the defending champion. Joey Logano is here for the second time in three years, and it could have been three straight years had it not been for an untimely incident last year with Matt Kenseth.
Then there's Carl Edwards.
Edwards hasn't been in this spot since 2011, when he lost the Sprint Cup title on a tie-breaker to Tony Stewart.