Kevin Gemmell Year one was rough for Jon Embree and Colorado. Year two might be worse.The Buffaloes learned that wide receiver Paul Richardson would be lost for the year with a torn knee ligament -- an injury that occurred during a non-contact special teams drill.Richardson is hands-down Colorado's best offensive weapon. And he will be again if/when he returns for the 2013 season as expected. He has a redshirt year to burn, which helps, but it doesn't change the fact the Buffaloes will be scrambling for playmakers this season. Originally posted by ESPN.com - Pac-10 Blog Click here to view the article.