Trice injured his left leg in Friday's preseason 20-13 loss to the Dolphins, Terrin Waack of the Falcons' official website reports.
Trice had to be assisted off the field by two trainers after the rookie got caught up in the mix along the line of scrimmage. After being selected in the third round of this year's draft, he spent time with both the first and second team defenses at practice. It remains to be seen how serious his leg injury is.