ProFootballTalk: One-on-one with Donte Whitner

Posted by NBCSports.com on November 28, 2012, 7:30 PM EDT

Erik Kuselias sits down with San Francisco 49ers S Donte Whitner to ask what Alex Smith is feeling now that Colin Kaepernick will start on Sunday. They also discuss the latest Adderall fad in the NFL and his prediction for how the ’9ers will conclude their season.