Gibbs left Monday's practice early due to a hamstring injury, Colton Pouncy of The Athletic reports.
Hamstring injuries can be tricky to gauge, so it remains to be seen how serious the issue is for Gibbs. When healthy, he is expected to play a predominant role in Detroit's offense. Expect the Lions to err on the side of caution with their prized backfield asset in order to ensure his long-term health.