Helio Castroneves is Tired

It was the darndest thing. Helio Castroneves is just driving along, minding his own business and his back right tire popped off. Not his wheel, just the tire. It sheared right off, and he drove into his pit with 4 wheels and 3 tires. He got a new tire and went back out in a matter of seconds. Right now, while we're still under yellow from the Briscoe-Bell accident, Helio is running 18th.