Each week, Geoffrey Miller’s “Five Things to Watch” will help you catch up on the biggest stories of the NASCAR Sprint Cup Series’ upcoming race weekend. This week, NASCAR rolls west to Phoenix International Raceway where the final four drivers will be set for a one-race, winner-take-all showdown in the Chase for the Sprint Cup.
1. Kurt Busch investigated after domestic assault claim
Potential trouble is looming once again for NASCAR’s 2004 champion.