Zylstra (neck) was listed as a full participant on Wednesday's practice estimate.
Zylstra exited Sunday's 52-6 win over the Jaguars due to a neck injury.
Zylstra and Brock Wright will take on larger roles with starting tight end Sam LaPorta (shoulder) ruled out for Sunday's game against Jacksonville, the Lansing State Journal reports.
Zylstra reverted to the Lions' practice squad Monday, per the NFL's official transaction log.
The Lions elevated Zylstra from the practice squad to the active roster Saturday.
The Lions elevated Zylstra from the practice squad to the active roster Saturday.
Zylstra signed with the Lions' practice squad Wednesday.
The Lions waived Zylstra on Monday, Tom Pelissero of NFL Network reports.
Zylstra (knee) re-signed with the Lions on Monday.
The Lions waived Zylstra (knee) on Tuesday with an injury designation.