Vaki recorded one carry for seven yards and caught his only target for 13 yards during Thursday's 41-31 loss at Buffalo.
Vaki was on the field for 11 of the Lions' 65 offensive snaps in Week 2, a similar workload to what he saw in Week 1. Barring an injury to starter Jahmyr Gibbs, Vaki seems unlikely to get the ball more than a couple times in any given game.