Biffle wins at Michigan

Greg Biffle took advantage of a Jimmie Johnson flat tire with three laps to go and won the Quicken Loans 400 at Michigan International Speedway for his first Sprint cup win of the year.  He held off Kevin Harvick for the win.  Martin Truex Junior was third, Kyle Busch fourth, and Tony Stewart fifth.  Johnson wound up 28th with the tire issue, but still maintains at 31 point lead over Carl Edwards in the Sprint Cup Points race.