Both Gisborne teams have been hit hard by the flu and heavy colds this week, and training has been difficult for some players.
United player-coach Corey Adams and Thistle coach Garrett Blair will wait until match day to decide their starting line-up.
United will be without midfielder Dane Thompson, who has a knee injury and will be out for one or two weeks.
Adams says Port Hill’s league position will not make him take them lightly.
“In this league, any side can win on their day,” he said.
He wants his team to concentrate on their game plan — keep the ball, pass to feet — and says the goals will come.
The hot goalscoring form of younger brother Josh Adams makes that plan all the more effective.
“Port Hill United are a tall team, who will keep our defenders on their toes,” Corey Adams said.
Thistle coach Blair will not decide his starting line-up and tactics until tomorrow, when he knows who will be fit to play, but says his players are keen to get back on the field for only their second Pacific Premiership match in six weeks.
“We’ve trained and had inter-squad games to keep up the momentum, but it’s not the same,” he said.
Blair will not take anything for granted against Western Rangers, despite their lowly league placing.
“Anything can happen on the day,” he said.
Both matches kick off at 3pm.