Morrison (hamstring) is inactive for Sunday's night game against the Rams, Scott Smith of the Buccaneers' official site reports.
Morrison was unable to practice Friday due to a setback with his hamstring injury, and it seems the setback was too great for the rookie second-rounder to suit up for primetime action. With starting outside cornerback Jamel Dean (hip) also ruled out, Kindle Vildor is in line to get the start.