"Knowshon Moreno is experiencing the tailback version of the rubber-band effect. Those same tightly wound leg muscles that helped Moreno become the first running back selected in the 2009 draft are seemingly also prone to snapping.

Moreno yanked his "other" hamstring during practice this week and Friday was ruled out of the Broncos' game Sunday against Indianapolis.

Moreno severely pulled his right hamstring on the first day of training camp on Aug. 1, an injury that sidelined him for more than four weeks and the entire preseason.

It was his left hamstring that popped Thursday."