The defender impressed in a trial at Home Park at the start of the season and had to wait for a dispute with his old club, Vaslui in Romania, to be resolved before he could make his debut.
Zubar has been training with the club ever since and, after receiving international clearance, is in contention to start.
Kari Arnason has completed his four-match suspension and returns to the Argyle squad, while Luke Summerfield is ruled out with a knee injury.
Carl Fletcher could return from injury and goalkeeper David Button could also come back from a thigh problem.
On-loan midfielder Conor Clifford is due to make his last appearance before returning to parent club Chelsea, but Reid is trying to thrash out a deal to keep the youngster.
Source: PA
Source: PA