St. Louis Rams running back Isaiah Pead tore his anterior cruciate ligament.
Pead returned a kickoff, injuring himself without being hit when his leg bent awkwardly
Pead is a 2012 second-round draft pick.
He was running behind Zac Stacy and Tre Mason on the depth chart.
Follow me on Twitter: @RavensInsider
Aaron Wilson covers the Ravens for The Baltimore Sun