Vaki did not play in Saturday's preseason finale against the Colts, Nolan Bianchi of The Detroit News reports.
Vaki is not battling any injury. The running back was held out of Saturday's game because he has already proven himself throughout training camp. With Isiah Pacheco (back) still dealing with an injury, Vaki is in line to see reserve snaps behind Jahmyr Gibbs for the Lions' Week 1 game against the Saints.