Broncos starting running back Knowshon Moreno is expected to be out three weeks after an MRI exam revealed only minor fraying in his right hamstring but no significant tear, according to an NFL source. Moreno suffered the injury Sunday morning during the Broncos' first training-camp session. A few minutes later, Broncos backup running back Correll Buckhalter left the field with an upper back pull. When Buckhalter experienced tingling in his extremeties, he was sent to a local hospital as a precaution but was quickly released after his head, neck, back and spine were checked. The expectation is the veteran Buckhalter will let the trauma rest for about a week. Source: Denver Post
