Jahvid Best sustained a concussion, his second of the year.
The Lions did confirm that Best was concussed.
Best had a run of concussion-related issues during his junior season at Cal, as well, so the team will proceed with caution.
Maurice Morris took over for Best and gained 20 yards on five carries and would probably be heavily involved in the running game going forward if Best misses time. Keiland Williams and Jerome Harrison are other RBs on the roster. We'll continue to keep you posted as the week goes on.