http://www3.signonsandiego.com/stories/2009/sep/24/n49129203857-sproles-sore-chargers/?chargers Remarkably, more than 10 percent of his career touches have come in the first two games of this season. And while Chargers head coach Norv Turner wouldn't want to wear out his dynamo in this manner over a full season, he is going to ride Sproles while he can and while he has to.