Missouri defensive lineman Aldon Smith, back, pulls down Colorado quarterback Tyler Hansen for a sack in the fourth quarter of Missouri's 36-17 victory in an NCAA college football game in Boulder, Colo. , on Saturday, Oct. 31, 2009. AP Photo logo AP Photo 1 month ago

Missouri defensive lineman Aldon Smith, back, pulls down Colorado quarterback Tyler Hansen for a sack in the fourth quarter of Missouri's 36-17 victory in an NCAA college football game in Boulder, Colo. , on Saturday, Oct. 31, 2009.