Article Photos: Texas Motor Speedway story lines: Handicapping the Chase competitors' chances

Kurt Busch waits in the garage during practice for the NASCAR Sprint Cup Series Pure Michigan 400 auto race at Michigan International Speedway in Brooklyn, Mich., Saturday, Aug. 20, 2011. (AP Photo/Luke Brodbeck) ORG XMIT: MIPS102

Kurt Busch waits in the garage during practice for the NASCAR Sprint Cup Series Pure Michigan 400 auto race at Michigan International Speedway in Brooklyn, Mich., Saturday, Aug. 20, 2011. (AP Photo/Luke Brodbeck) ORG XMIT: MIPS102