Pirates, who will be without Maswanganyi due to a one-match suspension against Gallants, started their PSL campaign very well having secured seven successive victories and suffered only one loss.
The Buccaneers currently occupy second place in the PSL table, tied on 21 points with log leaders Mamelodi Sundowns, who are on top due to a better goal difference.
Meanwhile, Chiefs find themselves in ninth place after garnering only 11 points from eight matches having been inconsistent this season.
Frosler's availability is a big boost for Amakhosi especially with Dillan Solomons being sidelined for a month due to an injury and Njabulo Blom having been unconvincing when deployed as a makeshift right-back against Royal AM and Polokwane City.