Rangers will be without Lee McCulloch for Saturday's Scottish Third Division clash with Berwick Rangers at Ibrox.
The skipper misses out with an ankle injury, while Kevin Kyle remains on the sidelines with a knock.
Better news for the Light Blues is the availability of defender Ross Perry, despite suffering a broken nose in last week's draw with Elgin City.
The Israel international has moved from Belgian outfit Standard Liege on a six-month loan and could yet secure a permanent switch.
He told Celtic's official website: "Celtic are a very big club and even when I was young I always knew about the club, so when I got the opportunity to come I didn't need to think twice about it.
"Everything excites me about joining Celtic. I know a lot about the history of the club and how big it is. And it's always exciting to come to a new place - the fact I have to change country, make new friends and meet new staff.
"I know this is one of the biggest clubs in the world, they have won a lot of championships in Scotland and are the biggest club in Scotland. They also have a lot of history in European competition.
"I have heard the Celtic supporters are incredible and that there is a fantastic atmosphere in the stadium, and I'm looking forward to experiencing that."
Celtic look set to land a second consecutive SPL title after building up a nine-point advantage on home soil.
But with a blockbuster tie against Juventus to come in the Champions League next month, Gershon admitted the lure of top-class European action was a major attraction.
"I am very happy and excited at this opportunity and I'm ready to start," he added.
"It means we have a lot of games to play but I have been in the same situation at Standard last year with the Europa League and cups as well.
"I know there are a lot of big games to play and this is good.
"I saw the game against Barcelona and it was a really good game. I've played in the Champions League before with Standard but not after the group stages, so this will be a good adventure.
"All my thoughts now are working and succeeding with Celtic - this is my goal."