Razorbacks Lose Marshawn Powell To Torn Knee Ligaments by Chris Bahn Posted 11/22/2011 10:59 am Updated 4 years ago Arkansas will be without the services of junior forward Marshawn Powell this season. He's out 6-8 months with torn knee ligaments. Want the Full Article? Get Unlimited Archive Access for $19.95 per Year Readers must pay to access stories older than 20 days. Purchase Now Already have archive access? Login to view this article.